Lock, n. [AS. loc inclosure, an inclosed place, the fastening of a door, fr. l to lock, fasten; akin to OS. l (in comp.), D. luiken, OHG. l, Icel. l, Goth. l (in comp.); cf. Skr. ruj to break. Cf. Locket.].

Anything that fastens; specifically, a fastening, as for a door, a lid, a trunk, a drawer, and the like, in which a bolt is moved by a key so as to hold or to release the thing fastened. [1913 Webster]

A fastening together or interlacing; a closing of one thing upon another; a state of being fixed or immovable. [1913 Webster]
"Albemarle Street closed by a lock of carriages." [1913 Webster]

A place from which egress is prevented, as by a lock. Dryden. [1913 Webster]

The barrier or works which confine the water of a stream or canal. [1913 Webster]

An inclosure in a canal with gates at each end, used in raising or lowering boats as they pass from one level to another; -- called also lift lock. [1913 Webster]

That part or apparatus of a firearm by which the charge is exploded; as, a matchlock, flintlock, percussion lock, etc. [1913 Webster]

A device for keeping a wheel from turning. [1913 Webster]

A grapple in wrestling. Milton. [1913 Webster]

Detector lock, a lock containing a contrivance for showing whether it as has been tampered with. -- Lock bay (Canals), the body of water in a lock chamber. -- Lock chamber, the inclosed space between the gates of a canal lock. -- Lock nut. See Check nut, under Check. -- Lock plate, a plate to which the mechanism of a gunlock is attached. -- Lock rail (Arch.), in ordinary paneled doors, the rail nearest the lock. Lock rand (Masonry), a range of bond stone. Knight. -- Mortise lock, a door lock inserted in a mortise. -- Rim lock, a lock fastened to the face of a door, thus differing from a mortise lock.

Lock, v. t.

To fasten with a lock, or as with a lock; to make fast; to prevent free movement of; as, to lock a door, a carriage wheel, a river, etc. [1913 Webster]

To prevent ingress or access to, or exit from, by fastening the lock or locks of; -- often with up; as, to lock or lock up, a house, jail, room, trunk. etc. [1913 Webster]

To fasten in or out, or to make secure by means of, or as with, locks; to confine, or to shut in or out -- often with up; as, to lock one's self in a room; to lock up the prisoners; to lock up one's silver; to lock intruders out of the house; to lock money into a vault; to lock a child in one's arms; to lock a secret in one's breast. [1913 Webster]

To link together; to clasp closely; as, to lock arms. Shak. [1913 Webster]

To furnish with locks; also, to raise or lower (a boat) in a lock. [1913 Webster]

To seize, as the sword arm of an antagonist, by turning the left arm around it, to disarm him. [1913 Webster]

Lock, v. i.

To become fast, as by means of a lock or by interlacing; as, the door locks close. [1913 Webster]
"When it locked none might through it pass." [1913 Webster]

To lock into, to fit or slide into; as, they lock into each other. Boyle.

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OXFORD DICTIONARY

Lock, n. & v.
--n.
1 a mechanism for fastening a door, lid, etc., with a bolt that requires a key of a particular shape, or a combination of movements (see combination lock), to work it.
2 a confined section of a canal or river where the level can be changed for raising and lowering boats between adjacent sections by the use of gates and sluices.
3 a the turning of the front wheels of a vehicle to change its direction of motion. b (in full full lock) the maximum extent of this.
4 an interlocked or jammed state.
5 Wrestling a hold that keeps an opponent's limb fixed.
6 (in full lock forward) Rugby Football a player in the second row of a scrum.
7 an appliance to keep a wheel from revolving or slewing.
8 a mechanism for exploding the charge of a gun.
9 = airlock 2.
--v.
1 a tr. fasten with a lock. b tr. (foll. by up) shut and secure (esp. a building) by locking. c intr. (of a door, window, box, etc.) have the means of being locked.
2 tr. (foll. by up, in, into) enclose (a person or thing) by locking or as if by locking.
3 tr. (often foll. by up, away) store or allocate inaccessibly (capital locked up in land).
4 tr. (foll. by in) hold fast (in sleep or enchantment etc.).
5 tr. (usu. in passive) (of land, hills, etc.) enclose.
6 tr. & intr. make or become rigidly fixed or immovable.
7 intr. & tr. become or cause to become jammed or caught.
8 tr. (often in passive; foll. by in) entangle in an embrace or struggle.
9 tr. provide (a canal etc.) with locks.
10 tr. (foll. by up, down) convey (a boat) through a lock.
11 intr. go through a lock on a canal etc.

Idiom

lock-keeper a keeper of a lock on a river or canal. lock-knit knitted with an interlocking stitch. lock-nut Mech. a nut screwed down on another to keep it tight. lock on to locate or cause to locate by radar etc. and then track. lock out
1 keep (a person) out by locking the door.
2 (of an employer) submit (employees) to a lockout. lock step marching with each person as close as possible to the one in front. lock stitch a stitch made by a sewing-machine by firmly locking together two threads or stitches. lock, stock, and barrel n. the whole of a thing.
--adv. completely. under lock and key securely locked up.

Derivative

lockable adj. lockless adj.

Lock, n.
1 a a portion of hair that coils or hangs together. b (in pl.) the hair of the head.
2 a tuft of wool or cotton.

Derivative

-locked adj. (in comb.).

Etymology

OE locc f. Gmc

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THESAURUS

Lock
aboideau, accord, agree, air lock, answer to, articulate, assent, assort with, authority, bang, bar, barricade, barrier, batten, batten down, be consistent, be of one, be uniform with, bear hug, bind, block, block up, blockade, bolt, buckle, butt, button, button up, cage, catch, cessation, check, chime, chock, choke, choke off, clap, clasp, cleat, clip, close, close off, close out, close tight, close up, clutch, cohere, coincide, command, commit, concur, confine, conform, conform with, consist with, constrain, constrict, contain, contract, control, coop up, cooperate, correspond, cover, crimp, crowd, curl, dead set, dead stand, dead stop, deadlock, debar, detain, dock gate, dog, dovetail, dying down, ebb, ebbing, engage, entangle, entwine, exclude, fall in together, fasten, fit together, fix, fix on, fix upon, flood-hatch, floodgate, fold, fold up, follow, frizz, frizzle, full nelson, full stop, gate, go together, go with, grapple, grasp, half nelson, halt, hang together, harmonize, hasp, head gate, hinge, hit, hitch, hold, hold together, hook, implant, impound, imprison, incarcerate, interlock, intersect, jam, jibe, join, joint, keep out, keep track of, key, latch, lock gate, lock in, lock out, lock up, match, miter, mortise, nail, oblige, obstruct, occlude, overlap, pack, padlock, parallel, peg, penstock, pin, plant, plumb, ponytail, power, pursue, quarter nelson, rabbet, register, register with, respond to, restrain, restrict, retain, ringlet, rivet, scarf, scissors, screw, seal, seal off, seal up, secure, sew, shut, shut off, shut out, shut the door, shut tight, shut up, sing in chorus, skewer, slam, sluice, sluice gate, snap, sort with, square, square with, squeeze, squeeze shut, stabilize, stand, stand together, standstill, staple, stick, stifle, stillstand, stitch, stop, stop up, strangle, stranglehold, strangulate, subsidence, suffocate, supervision, sway, tack, tally, tide gate, toehold, toggle, track, tress, wane, waning, water gate, wedge, weir, zip up, zipper

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ROGET THESAURUS

Lock

Junction
VB join, unite, conjoin, connect, associate, put together, lay together, clap together, hang together, lump together, hold together, piece together, tack together, fix together, bind up together together, embody, reembody, roll into one, attach, fix, affix, saddle on, fasten, bind, secure, clinch, twist, make fast, tie, pinion, string, strap, sew, lace, tat, stitch, tack, knit, button, buckle, hitch, lash, truss, bandage, braid, splice, swathe, gird, tether, moor, picket, harness, chain, fetter, lock, latch, belay, brace, hook, grapple, leash, couple, accouple, link, yoke, bracket, marry, bridge over, span, braze, pin, nail, bolt, hasp, clasp, clamp, crimp, screw, rivet, impact, solder, set, weld together, fuse together, wedge, rabbet, mortise, miter, jam, dovetail, enchase, graft, ingraft, inosculate, entwine, intwine, interlink, interlace, intertwine, intertwist, interweave, entangle, twine round, belay, tighten, trice up, screw up, be joined, hang together, hold together, cohere.

Connection
N connection, vinculum, link, connective, connection, junction, bond of union, copula, hyphen, intermedium, bracket, bridge, stepping-stone, isthmus, bond, tendon, tendril, fiber, cord, cordage, riband, ribbon, rope, guy, cable, line, halser, hawser, painter, moorings, wire, chain, string, fastener, fastening, tie, ligament, ligature, strap, tackle, rigging, standing rigging, running rigging, traces, harness, yoke, band ribband, bandage, brace, roller, fillet, inkle, with, withe, withy, thong, braid, girder, tiebeam, girth, girdle, cestus, garter, halter, noose, lasso, surcingle, knot, running knot, cabestro, cinch, lariat, legadero, oxreim, suspenders, pin, corking pin, nail, brad, tack, skewer, staple, corrugated fastener, clamp, U-clamp, C-clamp, cramp, cramp iron, ratchet, detent, larigo, pawl, terret, treenail, screw, button, buckle, clasp, hasp, hinge, hank, catch, latch, bolt, latchet, tag, tooth, hook, hook and eye, lock, holdfast, padlock, rivet, anchor, grappling iron, trennel, stake, post, cement, glue, gum, paste, size, wafer, solder, lute, putty, birdlime, mortar, stucco, plaster, grout, viscum, shackle, rein, prop.

Hindrance
VB hinder, impede, filibuster, impedite, embarrass, keep off, stave off, ward off, obviate, avert, antevert, turn aside, draw off, prevent, forefend, nip in the bud, retard, slacken, check, let, counteract, countercheck, preclude, debar, foreclose, estop, inhibit, shackle, restrict, obstruct, stop, stay, bar, bolt, lock, block, block up, choke off, belay, barricade, block the way, bar the way, stop the way, forelay, dam up, put on the brake, scotch the wheel, lock the wheel, put a spoke in the wheel, put a stop to, traverse, contravene, interrupt, intercept, oppose, hedge in, hedge round, cut off, inerclude, interpose, interfere, intermeddle, cramp, hamper, clog, clog the wheels, cumber, encumber, incumber, handicap, choke, saddle with, load with, overload, lay, lumber, trammel, tie one's hands, put to inconvenience, incommode, discommode, discompose, hustle, corner, drive into a corner, run foul of, fall foul of, cross the path of, break in upon, thwart, frustrate, disconcert, balk, foil, faze, feaze, feeze, baffle, snub, override, circumvent, defeat, spike guns, spoil, mar, clip the wings of, cripple, put an extinguisher on, damp, dishearten, discountenance, throw cold water on, spoil sport, lay a wet blanket, throw a wet blanket on, cut the ground from under one, take the wind out of one's sails, undermine, be in the way of, stand in the way of, act as a drag, hang like a millstone round one's neck.

Prison
N prison, prison house, jail, gaol, cage, coop, den, cell, stronghold, fortress, keep, donjon, dungeon, Bastille, oubliette, bridewell, house of correction, hulks, tollbooth, panopticon, penitentiary, guardroom, lockup, hold, round house, watch house, station house, sponging house, station, house of detention, black hole, pen, fold, pound, inclosure, isolation (exclusion), penal settlement, penal colony, bilboes, stocks, limbo, quod, calaboose, chauki, choky, thana, workhouse, Newgate, Fleet, Marshalsea, King's Bench, Queen's Bench, bond, bandage, irons, pinion, gyve, fetter, shackle, trammel, manacle, handcuff, straight jacket, strait jacket, strait-jacket, strait-waistcoat, hopples, vice, vise, yoke, collar, halter, harness, muzzle, gag, bit, brake, curb, snaffle, bridle, rein, reins, bearing rein, martingale, leading string, tether, picket, band, guy, chain, cord, cavesson, hackamore, headstall, jaquima, lines, ribbons, bolt, deadbolt, bar, lock, police lock, combination lock, padlock, rail, wall, stone wall, paling, palisade, fence, picket fence, barbed wire fence, Cyclone fence, stockade fence, chain-link fence, barrier, barricade, drag.

Roughness
N roughness, tooth, grain, texture, ripple, asperity, rugosity, salebrosity, corrugation, nodosity, arborescence, pilosity, brush, hair, beard, shag, mane, whisker, moustache, imperial, tress, lock, curl, ringlet, fimbriae, pili, cilia, villi, lovelock, beaucatcher, curl paper, goatee, papillote, scalp lock, plumage, plumosity, plume, panache, crest, feather, tuft, fringe, toupee, wool, velvet, plush, nap, pile, floss, fur, down, byssus, moss, bur, fluff, knot (convolution), rough, uneven, scabrous, scaly, knotted, rugged, rugose, rugous, knurly, asperous, crisp, salebrous, gnarled, unpolished, unsmooth, roughhewn, craggy, cragged, crankling, scraggy, prickly, arborescent, leafy, well-wooded, feathery, plumose, plumigerous, laciniate, laciniform, laciniose, pappose, pileous, pilose, trichogenous, trichoid, tufted, fimbriated, hairy, ciliated, filamentous, hirsute, crinose, crinite, bushy, hispid, villous, pappous, bearded, pilous, shaggy, shagged, fringed, befringed, setous, setose, setaceous, like quills upon the fretful porcupine, rough as a nutmeg grater, rough as a bear, downy, velvety, flocculent, woolly, lanate, lanated, lanuginous, lanuginose, tomentose, fluffy, against the grain, cabello luengo y corto el seso.

Quiescence
N quiescence, rest, stillness, quiescence, stagnation, stagnancy, fixity, immobility, catalepsy, indisturbance, quietism, quiet, tranquility, calm, repose, peace, dead calm, anticyclone, statue-like repose, silence, not a breath of air, not a mouse stirring, sleep, pause, lull, stand still, standing still, lock, dead lock, dead stop, dead stand, full stop, fix, embargo, resting place, gite, bivouac, home, pillow, haven, goal, quiescent, still, motionless, moveless, fixed, stationary, immotile, at rest at a stand, at a standstill, at anchor, stock, still, standing still, sedentary, untraveled, stay-at-home, becalmed, stagnant, quiet, unmoved, undisturbed, unruffled, calm, restful, cataleptic, immovable, sleeping, silent, still as a statue, still as a post, still as a mouse, still as death, vegetative, vegetating, at a stand, tout court, at the halt, Int, stop!, stay!, avast!, halt!, hold hard!, whoa!, hold!, sabr karo!, requiescat in pace, Deus nobis haec otia fecit, the noonday quiet holds the hill.

Conduit
N conduit, channel, duct, watercourse, race, head race, tail race, abito, aboideau, aboiteau, bito, acequia, acequiador, acequiamadre, arroyo, adit, aqueduct, canal, trough, gutter, pantile, flume, ingate, runner, lock-weir, tedge, vena, dike, main, gully, moat, ditch, drain, sewer, culvert, cloaca, sough, kennel, siphon, piscina, pipe, funnel, tunnel, water pipe, waste pipe, emunctory, gully hole, artery, aorta, pore, spout, scupper, adjutage, ajutage, hose, gargoyle, gurgoyle, penstock, weir, flood gate, water gate, sluice, lock, valve, rose, waterworks, pipeline, vascular.

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