Synonyms to grow thick

fatten, acculturate, add to, advance, aggrandize, aliment, ameliorate, amend, amplify, augment, batten, become overweight, better, bloom, blossom, boom, boost, breast-feed, breed, bring forward, broaden, build, build up, civilize, culture, dress, dry-nurse, edify, educate, elevate, emend, engross, enhance, enlarge, enlighten, enrich, exalt, expand, extend, farm, fat, fatten up, favor, fecundify, feed, fertilize, fill out, flourish, flower, force-feed, forward, foster, fructify, gain weight, gather flesh, go straight, grow, grow fat, hatch, hike, hike up, impregnate, improve, improve upon, incrassate, increase, inflate, inseminate, inspissate, jack up, jump up, keep, lactate, lard, lengthen, lift, make an improvement, manure, maximize, meliorate, mend, nourish, nurse, nurture, nutrify, parlay, pinguefy, plump, prolificate, promote, put on weight, put up, pyramid, raise, ranch, rear, refine upon, reform, run, socialize, straighten out, stuff, suckle, thick, thicken, thrive, transfigure, transform, up, upgrade, uplift, wet-nurse, beat up, bloated, blown up, cake, caked, cakey, churn, clabber, clabbered, clot,