A fastener (as a buckle or hook) that is used to hold two things together.

Roget 230: outline, circumference; perimeter, periphery, ambit, circuit, lines tournure^†, contour, profile, silhouette; bounds; coast line.    zone, belt, girth, band, baldric, zodiac, girdle, tyre [Brit.], cingle^†, clasp, girt; cordon etc. (inclosure) 232; circlet, etc. 247.    ... show more

Roget 45: vinculum, link; connective, connection; junction etc. 43; 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 etc. (filament) 205.    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 [U.S.], cinch [U.S.], 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 etc. (means of restraint) 752; prop etc. (support) 215.    ... show more

Dutch: kram
Polish: łapaczka

The act of grasping:
— He released his clasp on my arm.

synonyms: clench, clutch, clutches, grasp, grip, hold.

Dutch: klemmen, omklemmen
Polish: chwyt

Hold firmly and tightly.

Roget 789: take, catch, hook, nab, bag, sack, pocket, put into one's pocket; receive; accept.    reap, crop, cull, pluck; gather etc. (get) 775; draw.    appropriate, expropriate, impropriate^†; assume, possess oneself of; take possession of; commandeer; lay one's hands on, clap one's hands on; help oneself to; make free with, dip one's hands into, lay under contribution; intercept; scramble for; deprive of.    take away, carry away, bear away, take off, carry off, bear off; adeem^†; abstract; hurry off with, run away with; abduct; steal etc. 791; ravish; seize; pounce upon, spring upon; swoop to, swoop down upon; take by storm, take by assault; snatch, reave^†.    snap up, nip up, whip up, catch up; kidnap, crimp, capture, lay violent hands on.    get hold of, lay hold of, take hold of, catch hold of, lay fast hold of, take firm hold of; lay by the heels, take prisoner; fasten upon, grip, grapple, embrace, gripe, clasp, grab, clutch, collar, throttle, take by the throat, claw, clinch, clench, make sure of.    catch at, jump at, make a grab at, snap at, snatch at; reach, make a long arm, stretch forth one's hand.    take from, take away from; disseize^†; deduct etc. 38; retrench etc. (curtail) 201; dispossess, ease one of, snatch from one's grasp; tear from, tear away from, wrench from, wrest from, wring from; extort; deprive of, bereave; disinherit, cut off with a shilling.    oust etc. (eject) 297; divest; levy, distrain, confiscate; sequester, sequestrate; accroach^†; usurp; despoil, strip, fleece, shear, displume^†, impoverish, eat out of house and home; drain, drain to the dregs; gut, dry, exhaust, swallow up; absorb etc. (suck in) 296; draw off; suck the blood of, suck like a leech.    retake, resume; recover etc. 775.    ... show more

Roget 902: caress, fondle, pet, dandle; pat, pat on the head, pat on the cheek; chuck under the chin, smile upon, coax, wheedle, cosset, coddle, cocker, cockle; make of, make much of; cherish, foster, kill with kindness.    clasp, hug, cuddle; fold in one's arms, strain in one's arms; nestle, nuzzle; embrace, kiss, buss, smack, blow a kiss; salute etc. (courtesy) 894; fold to the heart, press to the bosom.    bill and coo, spoon, toy, dally, flirt, coquet; gallivant, galavant; philander; make love; pay one's court to, pay one's addresses to, pay one's attentions to; serenade; court, woo; set one's cap at; be sweet upon, look sweet upon; ogle, cast sheep's eyes upon; faire les yeux doux [Fr.].    fall in love with, win the affections etc. (love) 897; die for.    propose; make an offer, have an offer; pop the question; plight one's troth, plight one's faith.    ... show more

Roget 197: be near etc. adj.; adjoin, hang about, trench on; border upon, verge upon; stand by, approximate, tread on the heels of, cling to, clasp, hug; huddle; hang upon the skirts of, hover over; burn.    touch etc. 199; bring near, draw near etc. 286; converge etc. 290; crowd etc. 72; place side by side etc. adv.. ... show more

Roget 46: cohere, adhere, stick, cling, cleave, hold, take hold of, hold fast, close with, clasp, hug; grow together, hang together; twine round etc. (join) 43.    stick like a leech, stick like wax; stick close; cling like ivy, cling like a bur; adhere like a remora, adhere like Dejanira's shirt.    glue; agglutinate, conglutinate^†; cement, lute, paste, gum; solder, weld; cake, consolidate etc. (solidify) 321; agglomerate.    ... show more

Fasten with or as if with a brooch.

synonym: brooch.

Fasten with a buckle or buckles.

synonym: buckle.

Roget 43: join, unite; conjoin, connect; associate; put together, lay together, clap together, hang together, lump together, hold together, piece together [Fr.], 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 etc. adj.; 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 etc. (restrain) 751; lock, latch, belay, brace, hook, grapple, leash, couple, accouple^†, link, yoke, bracket; marry etc. (wed) 903; 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 &c.; hang together, hold together; cohere etc. 46.    ... show more

Grasp firmly.