crux, nubbin, gist, upshot, brass tacks, prongs, illogicality, mousepad, spacebar, red herring, unkindest, ear lobe, biro, crinkle, integument, bobby pin, holey, craw, backspace key, clawlike, fig leaf, essence, prickles, glans, accusative, wasp waist, button, indeterminacy, bugbear, galls, rub, sort, pussyfoot, thumbwheel, corollary, moot, reductio ad absurdum, bollix, forefinger, rump, merkin, pragmatics, convolute, metonymy, pithiness, stems, tounge, sponginess, unpicking, blancmange, gubbins, springiness, bandaid, vacuousness, endplate, floury, trackpad, uvula, fuddle, handbrake, toryism, nettle, fingers, duffel coat, philosophical, lateral epicondyle, bollock, answer, occipital bone, typer, tongue, wonky, issue, trackball, scalpel, clicky, rubbery, hairs, appendage, ear, semantics, declarative sentence, quills, germaine, trouser leg, pinking shears, gravamen, clever clogs, petioles, cowlick, occipital lobe, pedants, convex, squidgy, cavil, snakey, serration, consequence, platitude, intractability, syllogism, futurology, flesh, insides, nipple, lump, muzzle, nipples, inside, lips, backside, butt, clods, cork, earth, knob, nose, outer, wad, wads, bottom, <, coming, count, crimped, delete, forecastle, generality, groove, infinitive, lirtle, plus, raveled, road, slightest, sticky, tag, tarred, to, twisted, untwisted

hypostasis, nubbin, quintessence, stuff

nubbin

bulge, bump, cognitive content, content, excrescence, extrusion, gibbosity, gibbousness, hump, jut, mental object, part, piece, prominence, protrusion, protuberance

center, core, essence, gist, heart, inwardness, kernel, marrow, meat, nitty-gritty, pith, stub, substance, sum