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Double Key Door Knob #1 Key Lock Cylinder Double Sided Door Knob Entrance C Series 70mm Backset

Saturday, November 25th, 2017 - Knob
Photo 1 of 8Double Key Door Knob  #1 Key Lock Cylinder Double Sided Door Knob Entrance C Series 70mm Backset

Double Key Door Knob #1 Key Lock Cylinder Double Sided Door Knob Entrance C Series 70mm Backset

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Double

dou•ble (dubəl),USA pronunciation adj., n., v.,  -bled, -bling, adv. 
adj. 
  1. twice as large, heavy, strong, etc.;
    twofold in size, amount, number, extent, etc.: a double portion; a new house double the size of the old one.
  2. composed of two like parts or members;
    twofold in form;
    paired: double doors; a double sink.
  3. of, pertaining to, or suitable for two persons: a double room.
  4. twofold in character, meaning, or conduct;
    dual or ambiguous: a double interpretation.
  5. deceitful;
    hypocritical;
    insincere.
  6. (of musical instruments) producing a tone an octave lower than the notes indicate.
  7. duple, as time or rhythm.
  8. folded in two;
    having one half folded over the other.
  9. (of a bed or bedclothes) full-size: a double blanket.
  10. [Bot.](of flowers) having many more than the normal number of petals: double petunias; double hollyhocks.

n. 
  1. anything that is twofold in size or amount or twice the usual size, quantity, strength, etc.
  2. a duplicate or counterpart;
    something exactly or closely resembling another: This dress is the double of that. He is the double of his cousin.
  3. Also called  double room. a type of hotel accommodation with two beds, or sometimes a double bed, for occupancy by two persons. Cf. twin (def. 4).
  4. a fold or plait.
  5. an alcoholic drink containing twice the usual amount of alcohol.
  6. a sudden backward turn or bend, as of a fox on the run in fox hunting;
    reversal.
  7. a trick or artifice, as of argument in a formal debate.
  8. a substitute actor or singer ready to take another's place;
    understudy.
  9. [Motion Pictures, Television.]a substitute who performs feats or actions too hazardous or difficult for a star.
  10. [Baseball.]See  two-base hit. 
  11. [Mil.]double time.
  12. doubles, (used with a sing. v.) a game or match in which there are two players on each side, as in tennis.
  13. (in bridge or other card games)
    • a challenge by an opponent that the declarer cannot fulfill the designated contract, increasing the points to be won or lost.
    • a hand that warrants such a challenge.
  14. [Bridge.]a conventional bid informing one's partner that a player's hand is of a certain strength.
  15. [Bowling.]two strikes in succession: He needed a double in the tenth frame to win.
  16. See  daily double. 
  17. any of certain feasts in the Roman Catholic Church, marked by a doubled antiphon and taking precedence over lesser feasts.
  18. [Music. Rare.]a variation.
  19. a former coin of France, the sixth part of a sol, issued in silver in the 14th century, later made of copper.
  20. at the double, [Brit. Informal.]on the double.
  21. on the double, [Informal.]
    • without delay;
      rapidly: The fire engines came on the double.
    • in double time, as marching troops.

v.t. 
  1. to make double or twice as great;
    to add an equal amount to: The baby doubled its weight in a year.
  2. to bend or fold with or as with one part over another (often fol. by over, up, back, etc.): Double the edge over before sewing.
  3. to clench: He doubled his fists.
  4. to be or have twice as much as: Income doubled expenditure.
  5. [Naut.]
    • to sail around (a projecting area of land): to double Cape Horn.
    • to add a new layer of planking or ceiling to (an old wooden hull).
  6. to pair;
    couple: The players were doubled for the tournament.
  7. [Music.]to reduplicate by means of a tone in another part, either at the unison or at an octave above or below.
  8. (in bridge and other card games)
    • to challenge (the bid of an opponent) by making a call that increases the value of tricks to be won or lost.
    • to challenge the bid of (an opponent): He doubled me into game.
  9. [Baseball.]
    • to cause the advance of (a base runner) by a two-base hit: He doubled him to third.
    • to cause (a run) to be scored by a two-base hit (often fol. by in): He doubled in the winning run.
    • to put out (a base runner) as the second out of a double play (often fol. by up).

v.i. 
  1. to become double: My money doubled in three years.
  2. to bend or fold (often fol. by up or over): to double over with pain.
  3. to turn back on a course or reverse direction (often fol. by back): He doubled back by another road and surprised us.
  4. [Mil.]to march at the double-time pace.
  5. to serve in two capacities or in an additional capacity: She doubles as producer and director.
  6. to act as a double in a play, motion picture, or the like.
  7. [Music.]to play an instrument besides one's regular instrument (usually followed by on): The saxophonist doubles on drums.
  8. (in bridge and other card games) to double the bid of an opponent.
  9. [Baseball.]to make a two-base hit.
  10. to double-date.
  11. double in brass, [Informal.]to serve in two capacities;
    be able to do work different from one's own: It is a small firm, and everyone doubles in brass when emergencies arise.
  12. double or nothing, a bet having as its outcome either the doubling of a previous loss or debt or the canceling of that loss or debt. Also,  double or quits. 
  13. double up: 
    • to share quarters planned for only one person or family: Because of the room shortage, we had to double up.
    • to bend over, as from pain: He doubled up in agony.

adv. 
  1. to twice the amount, number, extent, etc.;
    twofold;
    doubly.
  2. two together: There are only a few beds, so some of the children will have to sleep double for the night.
double•ness, n. 
doubler, n. 

Key

key1  (kē),USA pronunciation  n., pl.  keys, adj., v.,  keyed, key•ing. 
n. 
  1. a small metal instrument specially cut to fit into a lock and move its bolt.
  2. any of various devices resembling or functioning as a key: the key of a clock.
  3. See  key card. 
  4. something that affords a means of access: the key to happiness.
  5. something that secures or controls entrance to a place: Gibraltar is the key to the Mediterranean.
  6. something that affords a means of clarifying a problem.
  7. a book, pamphlet, or other text containing the solutions or translations of material given elsewhere, as testing exercises.
  8. a systematic explanation of abbreviations, symbols, etc., used in a dictionary, map, etc.: pronunciation key.Cf. legend (def. 4).
  9. the system, method, pattern, etc., used to decode or decipher a cryptogram, as a code book, machine setting, or key word.
  10. one of a set of marked parts, designated areas, or levers pressed in operating a typewriter, computer terminal, calculator, etc.
  11. a manually operated lever for opening and closing an electric circuit, used to produce signals in telegraphy.
    • (in a keyboard instrument) one of the levers that when depressed by the performer sets in motion the playing mechanism.
    • (on a woodwind instrument) a metal lever that opens and closes a vent.
    • the relationship perceived between all tones in a given unit of music and a single tone or a keynote;
      tonality.
    • the principal tonality of a composition: a symphony in the key of C minor.
    • the keynote or tonic of a scale.
  12. tone or pitch, as of voice: to speak in a high key.
  13. mood or characteristic style, as of expression or thought: He writes in a melancholy key.
  14. degree of intensity, as of feeling or action.
  15. a pin, bolt, wedge, or other piece inserted in a hole or space to lock or hold parts of a mechanism or structure together;
    a cotter.
  16. a small piece of steel fitting into matching slots of a hub of a wheel or the like and the shaft on which the wheel is mounted so that torque is transmitted from one to the other.
  17. a contrivance for grasping and turning a bolt, nut, etc.
  18. a field or group of characters within a record that identifies the record, establishing its position among sorted records, and/or provides information about its contents.
  19. (in a series of advertisements or announcements soliciting replies) a unique code inserted for each medium used, to determine the relative effectiveness of the media.
    • a device for opening and closing electrical contacts.
    • a hand-operated switching device ordinarily formed of concealed spring contacts with an exposed handle or push button, capable of switching one or more parts of a circuit.
  20. a systematic tabular classification of the significant characteristics of the members of a group of organisms to facilitate identification and comparison.
  21. [Masonry.]a keystone.
  22. (in a ribbed vault) a stone, as a boss, at the intersection of two or more ribs.
  23. [Masonry, Carpentry.]a wedge, as for tightening a joint or splitting a stone or timber.
  24. [Carpentry.]a small piece of wood set into a timber across the grain to prevent warping.
  25. any grooving or roughness applied to a surface to improve its bond with another surface.
  26. [Basketball.]keyhole (def. 2).
  27. the dominant tonal value of a picture, a high-key picture having light tonal values and minimal contrast and a low-key picture being generally dark with minimal contrast.
  28. [Painting.]the tonal value and intensity of a color or range of colors: Rembrandt's colors are characterized by their low key.
  29. a samara.
  30. (cap.) a member of the House of Keys.
  31. keys, spiritual authority.
  32. power of the keys, the authority of a pope in ecclesiastical matters, vested in him as successor of St. Peter.

adj. 
  1. chief;
    major;
    important;
    essential;
    fundamental;
    pivotal: a key person in the company; key industries.

v.t. 
  1. to regulate or adjust (actions, thoughts, speech, etc.) to a particular state or activity;
    bring into conformity: to key one's speech to the intellectual level of the audience.
  2. to regulate the key or pitch of.
  3. [Painting.]
    • to paint (a picture) in a given key.
    • to adjust the colors in (a painting) to a particular hue: He keyed the painting to brown.
  4. to fasten, secure, or adjust with a key, wedge, or the like, as parts of a mechanism.
  5. to provide with a key.
  6. (in the layout of newspapers, magazines, etc.) to identify, through signs or symbols, the positions of illustrations or pieces of copy in a dummy.
  7. to lock with or as if with a key.
  8. [Masonry.]to provide (an arch or vault) with a keystone.
  9. keyboard (def. 4).

v.i. 
  1. to use a key.
  2. keyboard (def. 4).
  3. key in, keyboard (def. 4).
  4. key on: 
    • [Football.]to watch the position and movements of an opponent in order to anticipate a play: The defensive backs keyed on the star receiver.
    • Also,  key in on. to single out as of prime importance or interest;
      be intent on or obsessed with: a company that is keyed in on growth.
  5. key up: 
    • to bring to a particular degree of intensity of feeling, excitement, energy, nervousness, agitation, etc.: keyed up over the impending test.
    • to raise (a piece of masonry) by the insertion of a wedge or wedges.
    • to raise (the haunches of an arch) by the insertion of a voussoir.

Door

door (dôr, dōr),USA pronunciation n. 
  1. a movable, usually solid, barrier for opening and closing an entranceway, cupboard, cabinet, or the like, commonly turning on hinges or sliding in grooves.
  2. a doorway: to go through the door.
  3. the building, house, etc., to which a door belongs: My friend lives two doors down the street.
  4. any means of approach, admittance, or access: the doors to learning.
  5. any gateway marking an entrance or exit from one place or state to another: at heaven's door.
  6. lay at someone's door, to hold someone accountable for;
    blame;
    impute.
  7. leave the door open, to allow the possibility of accommodation or change;
    be open to reconsideration: The boss rejected our idea but left the door open for discussing it again next year.
  8. lie at someone's door, to be the responsibility of;
    be imputable to: One's mistakes often lie at one's own door.
  9. show someone the door, to request or order someone to leave;
    dismiss: She resented his remark and showed him the door.
doorless, adj. 

Knob

knob (nob),USA pronunciation n., v.,  knobbed, knob•bing. 
n. 
  1. a projecting part, usually rounded, forming the handle of a door, drawer, or the like.
  2. a rounded lump or protuberance on the surface or at the end of something, as a knot on a tree trunk.
  3. an ornamental boss, as of carved work.
  4. a rounded hill, mountain, or elevation on a ridge.

v.t. 
  1. to produce a knob on.
  2. to furnish with a knob.
  3. (in stone cutting) to knock off (excess stone) preparatory to dressing;
    knobble;
    skiffle.
knoblike′, adj. 

Key

key1  (kē),USA pronunciation  n., pl.  keys, adj., v.,  keyed, key•ing. 
n. 
  1. a small metal instrument specially cut to fit into a lock and move its bolt.
  2. any of various devices resembling or functioning as a key: the key of a clock.
  3. See  key card. 
  4. something that affords a means of access: the key to happiness.
  5. something that secures or controls entrance to a place: Gibraltar is the key to the Mediterranean.
  6. something that affords a means of clarifying a problem.
  7. a book, pamphlet, or other text containing the solutions or translations of material given elsewhere, as testing exercises.
  8. a systematic explanation of abbreviations, symbols, etc., used in a dictionary, map, etc.: pronunciation key.Cf. legend (def. 4).
  9. the system, method, pattern, etc., used to decode or decipher a cryptogram, as a code book, machine setting, or key word.
  10. one of a set of marked parts, designated areas, or levers pressed in operating a typewriter, computer terminal, calculator, etc.
  11. a manually operated lever for opening and closing an electric circuit, used to produce signals in telegraphy.
    • (in a keyboard instrument) one of the levers that when depressed by the performer sets in motion the playing mechanism.
    • (on a woodwind instrument) a metal lever that opens and closes a vent.
    • the relationship perceived between all tones in a given unit of music and a single tone or a keynote;
      tonality.
    • the principal tonality of a composition: a symphony in the key of C minor.
    • the keynote or tonic of a scale.
  12. tone or pitch, as of voice: to speak in a high key.
  13. mood or characteristic style, as of expression or thought: He writes in a melancholy key.
  14. degree of intensity, as of feeling or action.
  15. a pin, bolt, wedge, or other piece inserted in a hole or space to lock or hold parts of a mechanism or structure together;
    a cotter.
  16. a small piece of steel fitting into matching slots of a hub of a wheel or the like and the shaft on which the wheel is mounted so that torque is transmitted from one to the other.
  17. a contrivance for grasping and turning a bolt, nut, etc.
  18. a field or group of characters within a record that identifies the record, establishing its position among sorted records, and/or provides information about its contents.
  19. (in a series of advertisements or announcements soliciting replies) a unique code inserted for each medium used, to determine the relative effectiveness of the media.
    • a device for opening and closing electrical contacts.
    • a hand-operated switching device ordinarily formed of concealed spring contacts with an exposed handle or push button, capable of switching one or more parts of a circuit.
  20. a systematic tabular classification of the significant characteristics of the members of a group of organisms to facilitate identification and comparison.
  21. [Masonry.]a keystone.
  22. (in a ribbed vault) a stone, as a boss, at the intersection of two or more ribs.
  23. [Masonry, Carpentry.]a wedge, as for tightening a joint or splitting a stone or timber.
  24. [Carpentry.]a small piece of wood set into a timber across the grain to prevent warping.
  25. any grooving or roughness applied to a surface to improve its bond with another surface.
  26. [Basketball.]keyhole (def. 2).
  27. the dominant tonal value of a picture, a high-key picture having light tonal values and minimal contrast and a low-key picture being generally dark with minimal contrast.
  28. [Painting.]the tonal value and intensity of a color or range of colors: Rembrandt's colors are characterized by their low key.
  29. a samara.
  30. (cap.) a member of the House of Keys.
  31. keys, spiritual authority.
  32. power of the keys, the authority of a pope in ecclesiastical matters, vested in him as successor of St. Peter.

adj. 
  1. chief;
    major;
    important;
    essential;
    fundamental;
    pivotal: a key person in the company; key industries.

v.t. 
  1. to regulate or adjust (actions, thoughts, speech, etc.) to a particular state or activity;
    bring into conformity: to key one's speech to the intellectual level of the audience.
  2. to regulate the key or pitch of.
  3. [Painting.]
    • to paint (a picture) in a given key.
    • to adjust the colors in (a painting) to a particular hue: He keyed the painting to brown.
  4. to fasten, secure, or adjust with a key, wedge, or the like, as parts of a mechanism.
  5. to provide with a key.
  6. (in the layout of newspapers, magazines, etc.) to identify, through signs or symbols, the positions of illustrations or pieces of copy in a dummy.
  7. to lock with or as if with a key.
  8. [Masonry.]to provide (an arch or vault) with a keystone.
  9. keyboard (def. 4).

v.i. 
  1. to use a key.
  2. keyboard (def. 4).
  3. key in, keyboard (def. 4).
  4. key on: 
    • [Football.]to watch the position and movements of an opponent in order to anticipate a play: The defensive backs keyed on the star receiver.
    • Also,  key in on. to single out as of prime importance or interest;
      be intent on or obsessed with: a company that is keyed in on growth.
  5. key up: 
    • to bring to a particular degree of intensity of feeling, excitement, energy, nervousness, agitation, etc.: keyed up over the impending test.
    • to raise (a piece of masonry) by the insertion of a wedge or wedges.
    • to raise (the haunches of an arch) by the insertion of a voussoir.

Lock

lock1  (lok),USA pronunciation n. 
  1. a device for securing a door, gate, lid, drawer, or the like in position when closed, consisting of a bolt or system of bolts propelled and withdrawn by a mechanism operated by a key, dial, etc.
  2. a contrivance for fastening or securing something.
  3. (in a firearm)
    • the mechanism that explodes the charge;
      gunlock.
    • safety (def. 4).
  4. any device or part for stopping temporarily the motion of a mechanism.
  5. an enclosed chamber in a canal, dam, etc., with gates at each end, for raising or lowering vessels from one level to another by admitting or releasing water.
  6. an air lock or decompression chamber.
  7. complete and unchallenged control;
    an unbreakable hold: The congresswoman has a lock on the senatorial nomination.
  8. someone or something certain of success;
    sure thing: He's a lock to win the championship.
  9. [Wrestling.]any of various holds, esp. a hold secured on the arm, leg, or head: leg lock.
  10. [Horol.](in an escapement) the overlap between a tooth of an escape wheel and the surface of the pallet locking it.
  11. a projection or recession in the mating face of a forging die.
  12. lock, stock, and barrel, completely;
    entirely;
    including every part, item, or facet, no matter how small or insignificant: We bought the whole business, lock, stock, and barrel.
  13. under lock and key, securely locked up: The documents were under lock and key.

v.t. 
  1. to fasten or secure (a door, window, building, etc.) by the operation of a lock or locks.
  2. to shut in a place fastened by a lock or locks, as for security or restraint.
  3. to make fast or immovable by or as if by a lock: He locked the steering wheel on his car.
  4. to make fast or immovable, as by engaging parts: to lock the wheels of a wagon.
  5. to join or unite firmly by interlinking or intertwining: to lock arms.
  6. to hold fast in an embrace: She was locked in his arms.
  7. to move (a ship) by means of a lock or locks, as in a canal (often fol. by through, in, out, down, or up).
  8. to furnish with locks, as a canal.

v.i. 
  1. to become locked: This door locks with a key.
  2. to become fastened, fixed, or interlocked: gears that lock into place.
  3. to go or pass by means of a lock or locks, as a vessel.
  4. to construct locks in waterways.
  5. lock horns, to come into conflict;
    clash: to lock horns with a political opponent.
  6. lock in: 
    • to commit unalterably: to lock in the nomination of the party's candidates.
    • (of an investor) to be unable or unwilling to sell or shift securities.
  7. lock off, to enclose (a waterway) with a lock.
  8. lock on, to track or follow a target or object automatically by radar or other electronic means.
  9. lock out: 
    • to keep out by or as if by a lock.
    • to subject (employees) to a lockout.
  10. lock up: 
    • to imprison for a crime.
    • to make (type) immovable in a chase by securing the quoins.
    • to fasten or secure with a lock or locks.
    • to lock the doors of a house, automobile, etc.
    • to fasten or fix firmly, as by engaging parts.
lockless, adj. 

Cylinder

cyl•in•der (silin dər),USA pronunciation n. 
  1. [Geom.]a surface or solid bounded by two parallel planes and generated by a straight line moving parallel to the given planes and tracing a curve bounded by the planes and lying in a plane perpendicular or oblique to the given planes.
  2. any cylinderlike object or part, whether solid or hollow.
  3. the rotating part of a revolver, containing the chambers for the cartridges.
  4. (in a pump) a cylindrical chamber in which a piston slides to move or compress a fluid.
  5. (in an engine) a cylindrical chamber in which the pressure of a gas or liquid moves a sliding piston.
  6. (in certain printing presses)
    • a rotating cylinder that produces the impression and under which a flat form to be printed from passes.
    • either of two cylinders, one carrying a curved form or plate to be printed from, that rotate against each other in opposite directions.
  7. (in certain locks) a cylindrical device for retaining the bolt until tumblers have been pushed out of its way.
  8. (in a screw or cylindrical gear) an imaginary cylindrical form, concentric to the axis, defining the pitch or the inner or outer ends of the threads or teeth.
  9. the tracks of a magnetic disk that are accessible from a single radial position of the access mechanism.
  10. the main roller on a carding machine, esp. the roller covered with card clothing that works in combination with the worker and stripper rollers in carding fibers.
  11. a cylindrical or somewhat barrel-shaped stone or clay object bearing a cuneiform inscription or a carved design, worn by the Babylonians, Assyrians, and kindred peoples as a seal and amulet.

v.t. 
  1. to furnish with a cylinder or cylinders.
  2. to subject to the action of a cylinder or cylinders.
cylin•der•like′, adj. 

Double

dou•ble (dubəl),USA pronunciation adj., n., v.,  -bled, -bling, adv. 
adj. 
  1. twice as large, heavy, strong, etc.;
    twofold in size, amount, number, extent, etc.: a double portion; a new house double the size of the old one.
  2. composed of two like parts or members;
    twofold in form;
    paired: double doors; a double sink.
  3. of, pertaining to, or suitable for two persons: a double room.
  4. twofold in character, meaning, or conduct;
    dual or ambiguous: a double interpretation.
  5. deceitful;
    hypocritical;
    insincere.
  6. (of musical instruments) producing a tone an octave lower than the notes indicate.
  7. duple, as time or rhythm.
  8. folded in two;
    having one half folded over the other.
  9. (of a bed or bedclothes) full-size: a double blanket.
  10. [Bot.](of flowers) having many more than the normal number of petals: double petunias; double hollyhocks.

n. 
  1. anything that is twofold in size or amount or twice the usual size, quantity, strength, etc.
  2. a duplicate or counterpart;
    something exactly or closely resembling another: This dress is the double of that. He is the double of his cousin.
  3. Also called  double room. a type of hotel accommodation with two beds, or sometimes a double bed, for occupancy by two persons. Cf. twin (def. 4).
  4. a fold or plait.
  5. an alcoholic drink containing twice the usual amount of alcohol.
  6. a sudden backward turn or bend, as of a fox on the run in fox hunting;
    reversal.
  7. a trick or artifice, as of argument in a formal debate.
  8. a substitute actor or singer ready to take another's place;
    understudy.
  9. [Motion Pictures, Television.]a substitute who performs feats or actions too hazardous or difficult for a star.
  10. [Baseball.]See  two-base hit. 
  11. [Mil.]double time.
  12. doubles, (used with a sing. v.) a game or match in which there are two players on each side, as in tennis.
  13. (in bridge or other card games)
    • a challenge by an opponent that the declarer cannot fulfill the designated contract, increasing the points to be won or lost.
    • a hand that warrants such a challenge.
  14. [Bridge.]a conventional bid informing one's partner that a player's hand is of a certain strength.
  15. [Bowling.]two strikes in succession: He needed a double in the tenth frame to win.
  16. See  daily double. 
  17. any of certain feasts in the Roman Catholic Church, marked by a doubled antiphon and taking precedence over lesser feasts.
  18. [Music. Rare.]a variation.
  19. a former coin of France, the sixth part of a sol, issued in silver in the 14th century, later made of copper.
  20. at the double, [Brit. Informal.]on the double.
  21. on the double, [Informal.]
    • without delay;
      rapidly: The fire engines came on the double.
    • in double time, as marching troops.

v.t. 
  1. to make double or twice as great;
    to add an equal amount to: The baby doubled its weight in a year.
  2. to bend or fold with or as with one part over another (often fol. by over, up, back, etc.): Double the edge over before sewing.
  3. to clench: He doubled his fists.
  4. to be or have twice as much as: Income doubled expenditure.
  5. [Naut.]
    • to sail around (a projecting area of land): to double Cape Horn.
    • to add a new layer of planking or ceiling to (an old wooden hull).
  6. to pair;
    couple: The players were doubled for the tournament.
  7. [Music.]to reduplicate by means of a tone in another part, either at the unison or at an octave above or below.
  8. (in bridge and other card games)
    • to challenge (the bid of an opponent) by making a call that increases the value of tricks to be won or lost.
    • to challenge the bid of (an opponent): He doubled me into game.
  9. [Baseball.]
    • to cause the advance of (a base runner) by a two-base hit: He doubled him to third.
    • to cause (a run) to be scored by a two-base hit (often fol. by in): He doubled in the winning run.
    • to put out (a base runner) as the second out of a double play (often fol. by up).

v.i. 
  1. to become double: My money doubled in three years.
  2. to bend or fold (often fol. by up or over): to double over with pain.
  3. to turn back on a course or reverse direction (often fol. by back): He doubled back by another road and surprised us.
  4. [Mil.]to march at the double-time pace.
  5. to serve in two capacities or in an additional capacity: She doubles as producer and director.
  6. to act as a double in a play, motion picture, or the like.
  7. [Music.]to play an instrument besides one's regular instrument (usually followed by on): The saxophonist doubles on drums.
  8. (in bridge and other card games) to double the bid of an opponent.
  9. [Baseball.]to make a two-base hit.
  10. to double-date.
  11. double in brass, [Informal.]to serve in two capacities;
    be able to do work different from one's own: It is a small firm, and everyone doubles in brass when emergencies arise.
  12. double or nothing, a bet having as its outcome either the doubling of a previous loss or debt or the canceling of that loss or debt. Also,  double or quits. 
  13. double up: 
    • to share quarters planned for only one person or family: Because of the room shortage, we had to double up.
    • to bend over, as from pain: He doubled up in agony.

adv. 
  1. to twice the amount, number, extent, etc.;
    twofold;
    doubly.
  2. two together: There are only a few beds, so some of the children will have to sleep double for the night.
double•ness, n. 
doubler, n. 

Sided

sid•ed (sīdid),USA pronunciation adj. 
  1. having a specified number or kind of sides (often used in combination): five-sided; plastic-sided.
[1425–75;
late ME;
see side1, -ed3]

Door

door (dôr, dōr),USA pronunciation n. 
  1. a movable, usually solid, barrier for opening and closing an entranceway, cupboard, cabinet, or the like, commonly turning on hinges or sliding in grooves.
  2. a doorway: to go through the door.
  3. the building, house, etc., to which a door belongs: My friend lives two doors down the street.
  4. any means of approach, admittance, or access: the doors to learning.
  5. any gateway marking an entrance or exit from one place or state to another: at heaven's door.
  6. lay at someone's door, to hold someone accountable for;
    blame;
    impute.
  7. leave the door open, to allow the possibility of accommodation or change;
    be open to reconsideration: The boss rejected our idea but left the door open for discussing it again next year.
  8. lie at someone's door, to be the responsibility of;
    be imputable to: One's mistakes often lie at one's own door.
  9. show someone the door, to request or order someone to leave;
    dismiss: She resented his remark and showed him the door.
doorless, adj. 

Knob

knob (nob),USA pronunciation n., v.,  knobbed, knob•bing. 
n. 
  1. a projecting part, usually rounded, forming the handle of a door, drawer, or the like.
  2. a rounded lump or protuberance on the surface or at the end of something, as a knot on a tree trunk.
  3. an ornamental boss, as of carved work.
  4. a rounded hill, mountain, or elevation on a ridge.

v.t. 
  1. to produce a knob on.
  2. to furnish with a knob.
  3. (in stone cutting) to knock off (excess stone) preparatory to dressing;
    knobble;
    skiffle.
knoblike′, adj. 

Entrance

en•trance1  (entrəns),USA pronunciation n. 
  1. an act of entering, as into a place or upon new duties.
  2. a point or place of entering;
    an opening or passage for entering, as a doorway.
  3. the right, privilege, or permission to enter;
    admission: People improperly dressed will be refused entrance to the theater.
  4. [Theat.]the moment or place in the script at which an actor comes on the stage.
    • the point in a musical score at which a particular voice or instrument joins the ensemble.
    • the way in which this is done: a sloppy entrance.
  5. a manner, means, or style of entering a room, group, etc.;
    way of coming into view: She mimicked Joan's entrance.
  6. the immersed portion of a hull forward of the middle body (opposed to run).

C

Roman numerals,
  • the numerals in the ancient Roman system of notation, still used for certain limited purposes, as in some pagination, dates on buildings, etc. The common basic symbols are  I (=1), V (=5), X (=10), L (=50), C (=100), D (=500), and  M (=1000). The Roman numerals for one to nine are: I, II, III, IV, V, VI, VII, VIII, IX. A bar over a letter multiplies it by 1000;
    thus, X̄ equals 10,000. Integers are written according to these two rules: If a letter is immediately followed by one of equal or lesser value, the two values are added;
    thus, XX equals 20, XV equals 15, VI equals 6. If a letter is immediately followed by one of greater value, the first is subtracted from the second;
    thus, IV equals 4, XL equals 40, CM equals 900. Examples: XLVII(=47), CXVI(=116), MCXX(=1120), MCMXIV(=1914). Roman numerals may be written in lowercase letters, though they appear more commonly in capitals.
  • Related Pictures on Double Key Door Knob #1 Key Lock Cylinder Double Sided Door Knob Entrance C Series 70mm Backset