Button

Noun

 * 1) A knob or disc that is passed through a loop or (buttonhole), serving as a fastener.
 * 2) A mechanical device meant to be pressed with a finger in order to open or close an electric circuit or to activate a mechanism.
 * 3)  An on-screen control that can be selected as an activator of an attached function.
 * 4) 🇺🇸 A badge worn on clothes, fixed with a pin through the fabric.
 * 5)  A bud.
 * 6)  The clitoris.
 * 7)  The center (bullseye) of the house.
 * 8)  The soft circular tip at the end of a foil.
 * 9)  A plastic disk used to represent the person in last position in a poker game; also dealer's button.
 * 10)  The player who is last to act after the flop, turn and river, who possesses the button.

Verb

 * 1)  To fasten with a button.

Adjectives for Button
saucer; shining; blue-jerkined; glittering; showy; blazing; fantastic.

Verbs for Button
adorn with —s; attach—; card —s; decorate with —s; drill —s; fondle—; grind mold —s; ornament with —s; perforate polish—; press out —s; sew on—; sort stamp out —s; stud with —s; undo—; —affixes; —decorates; —fastens; —signifies.

Thesaurus
a continental, a curse, a damn, a darn, a hoot, anchor, armory, articulate, badge, badge of office, badges, bagatelle, band, bandage, bang, bantam, banty, bar, barrette, barricade, baton, batten, batten down, bauble, bean, bellyband, belt, bibelot, bilge, bind, binding, binding stone, binding twine, bit, blain, blazonry, bleb, blister, blob, bobby pin, bollard, bolt, bonder, bondstone, boss, bow, box hook, brace, braces, brad, braid, brass farthing, brassard, bubble, buckle, bulb, bulge, bulla, bullion, bump, bunch, burl, butt, button up, cable, cahot, cap and gown, carpet tack, cast, casting, catch, cent, chain, chain of office, chin, chine, chit, choke, choke off, cinch, cincture, clamp, clap, clasp, class ring, cleat, click, clinch, clip, close, close up, clothespin, clump, cockade, collar, condyle, constrict, contain, contract, convex, corking pin, cotter, cover, cross, curio, decoration, diminutive, dovetail, dowel, dress, eagle, ear, emblems, ensigns, farce, farthing, fasces, fasten, feather, featherweight, fibula, fig, figurehead, fillet, fingerling, fishhook, flange, flap, fleabite, fleur-de-lis, fold, fold up, folderol, fribble, frippery, funiculus, gall, garter, gate, gaud, gewgaw, gimcrack, girdle, girth, gnarl, grab, grapnel, grappler, grappling iron, guy, hair, hairpin, halfpenny, hammer and sickle, handle, hank, hasp, hawser, haywire, heraldry, hill, hill of beans, hinge, hitch, hitching post, holdfast, hook, hook and eye, hump, hunch, ingot, inkle, insignia, interlocker, jam, jest, jog, joggle, joint, joke, kevel, key, kickshaw, kingpin, knickknack, knickknackery, knob, knot, knur, knurl, lace, lacing, lapel pin, lariat, latch, latchet, leader, ligament, lightweight, line, lip, livery, lock, lock out, lock up, loop, lump, mace, mantle, markings, medal, mentum, mini, minikin, minnow, minny, miter, mockery, mole, molehill, moorings, mortarboard, mortise, mountain, mouse, nail, nevus, noose, nub, nubbin, nubble, nut, occlude, old school tie, padlock, paper clip, papilloma, pawl, peewee, peg, peppercorn, picayune, pig, pin, pinch of snuff, pinprick, pintle, plumb, pony, rabbet, rap, red cent, regalia, regulus, rib, ridge, ring, rivet, roller, rope, rose, row of pins, runt, rush, safety pin, scarf, school ring, screw, seal, seal off, seal up, secure, sennit, setscrew, sew, shamrock, sheet metal, shit, shoulder, shrimp, shut, shut the door, shut up, sigillography, skewer, skull and crossbones, slam, slide fastener, slip, small fry, snap, sneeshing, snip, snippet, snubbing post, sou, sow, sphragistics, spike, spine, splice, squeeze shut, staff, staple, stick, stitch, strangle, strap, straw, string, strop, stub tenon, stud, style, suspenders, swastika, tab, tack, tag, tartan, tendon, terret, thistle, thole, tholepin, thong, thumbtack, tie, tie beam, tit, toggle, toy, treenail, trifle, trinket, triviality, tubercle, tubercule, tug, tuppence, twine, two cents, twopence, uniform, verge, verruca, vesicle, vise, wale, wand, wart, wedge, welt, whang, whim-wham, wire, wisp, zip up, zipper

Etymology
From boton: (French bouton:), from  *undefined:, probably ultimately from a  language.