CIDE DICTIONARY

stopper, n.

One who stops, closes, shuts, or hinders; that which stops or obstructs; that which closes or fills a vent or hole in a vessel. [1913 Webster]
A short piece of rope having a knot at one or both ends, with a lanyard under the knot, -- used to secure something. Totten. [1913 Webster]
A name to several trees of the genus Eugenia, found in Florida and the West Indies; as, the red stopper. See Eugenia. C. S. Sargent. [1913 Webster]

Ring stopper (Naut.), a short rope or chain passing through the anchor ring, to secure the anchor to the cathead. -- Stopper bolt (Naut.), a large ringbolt in a ship's deck, to which the deck stoppers are hooked.

stopper, v. t.

To close or secure with a stopper. [1913 Webster]

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OXFORD DICTIONARY

stopper, n. & v.
--n.
1 a plug for closing a bottle etc.
2 a person or thing that stops something.
3 Naut. a rope or clamp etc. for checking and holding a rope cable or chain cable.
--v.tr. close or secure with a stopper.

Idiom

put a stopper on
1 put an end to (a thing).
2 keep (a person) quiet.

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THESAURUS

stopper

KO, bar, bind, block, block up, blockade, bonnet, bung, cap, caulk, ceil, check valve, chink, choke, choke off, choke up, clincher, clog, clog up, close, cock, coif, congest, constipate, cork, cover, crown, crusher, dam, dam up, death stroke, deathblow, dome, end-all, ender, faucet, fill, fill up, final stroke, finisher, finishing stroke, foul, hat, hood, jam, kayo, kayo punch, knockout, knockout blow, last dab, lid, obstipate, obstruct, occlude, operculum, pack, peg, pin, plug, plug up, quietus, roof, roof in, sea cock, settler, sockdolager, spigot, spike, spile, spill, stanch, stay, stench, stop, stop up, stopgap, stopple, stuff, stuff up, tap, tip, top, valve

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ROGET THESAURUS

stopper

Hindrance

N hindrance, prevention, preclusion, obstruction, stoppage, embolus, embolism, infarct, interruption, interception, interclusion, hindrance, impedition, retardment, retardation, embarrassment, oppilation, coarctation, stricture, restriction, restraint, inhibition, blockade, interference, interposition, obtrusion, discouragement, discountenance, impediment, let, obstacle, obstruction, knot, knag, check, hitch, contretemps, screw loose, grit in the oil, bar, stile, barrier, turnstile, turnpike, gate, portcullis, beaver dam, trocha, barricade, wall, dead wall, sea wall, levee breakwater, groyne, bulkhead, block, buffer, stopper, boom, dam, weir, burrock, drawback, objection, stumbling-block, stumbling-stone, lion in the path, snag, snags and sawyers, encumbrance, incumbrance, clog, skid, shoe, spoke, drag, drag chain, drag weight, stay, stop, preventive, prophylactic, load, burden, fardel, onus, millstone round one's neck, impedimenta, dead weight, lumber, pack, nightmare, Ephialtes, incubus, old man of the sea, remora, difficulty, insuperable, obstacle, estoppel, ill wind, head wind, trammel, tether, hold back, counterpoise, damper, wet blanket, hinderer, marplot, killjoy, party pooper, party crasher, interloper, trail of a red herring, opponent, hindering, obstructive, obstruent, impeditive, impedient, intercipient, prophylactic, impedimentary, in the way of, unfavorable, onerous, burdensome, cumbrous, cumbersome, obtrusive, hindered, windbound, waterlogged, heavy laden, hard pressed, unassisted &c (assist), single-handed, alone, deserted, occurrent nubes.

Closure

N closure, occlusion, blockade, shutting up, obstruction, embolus, contraction, infarction, constipation, obstipation, blind alley, blind corner, keddah, cul-de-sac, caecum, imperforation, imperviousness, impermeability, stopper, closed, shut, operculated, unopened, unpierced, imporous, caecal, closable, imperforate, impervious, impermeable, impenetrable, impassable, unpassable, invious, pathless, wayless, untrodden, untrod, unventilated, air tight, water tight, hermetically sealed, tight, snug.

Stopper

N stopper, stopple, plug, cork, bung, spike, spill, stopcock, tap, rammer, ram, ramrod, piston, stop-gap, wadding, stuffing, padding, stopping, dossil, pledget, tompion, tourniquet, cover, valve, vent peg, spigot, slide valve, janitor, doorkeeper, porter, warder, beadle, cerberus, ostiary.

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