Synonyms of strengthen

1 Syllable

tone, steels, mount, steel, add, rise, wax, fed

2 Syllables

stiffen, propping, braced, propped, ascend, callus, brace, heartens, heighten, extend, readying, sinew, liven, augment, tripling, feeding, harden, toughens, toughen, reerect, cheered, snowball, entrench, fasten, tripled, firmed, quickens, hearten, hardens, livens, arming, renew, buttress, temper, quicken, readied, steeled, stiffens, fastens, sustain, anneal, starching, support, candying, bolsters, crowned, confirm, heightens, bolster, steeling, firming, girthed

3 Syllables

callused, upborne, livening, toughened, uniting, bolstered, amplify, reimposed, redoubling, livened, fortifying, reviving, embattle, augmenting, forgather, prepare, redoubled, unite, underprop, calloused, enhance, quickened, snowballed, heightening, comforted, increase, reawaken, enhanced, establish, reimpose, entrenching, heartened, restore, justify, amplified, fortify, inspirit, fortifies, embattling, snowballing, reimposing, vitrifying, redouble, pillowed, augmented, stiffened, empower, enlarge, enhancing, pillowing, multiply, calluses, vitrify, bolstering, reawakens, resurrect, amplifying, stiffening, toughening, densify, entrenches, reinforce, restoring, recruiting, callouses

4 Syllables

intensifying, resurrecting, intensifies, indurating, solidifying, substantiate, reanimated, solidified, supplementing, reawakening, coronate, revivified, reanimate, indurate, inspirited, supplemented, revivify, intensified, vitalize, intensate, caseharden, inspiriting, solidify, activize, vitalized, coronated, energized, resurrected, intensify, reawakened, indurated, solidifies, revivifying

5 Syllables

regenerate, rejuvenate, corroborated, invigorated, consolidate, corroborating, corroborate, invigorate, consolidated, consolidating