Deepen rhymes with:
cheapen, eappen, alagappan, aspen, campen, capen, cheapen, compean, copen, crippen, crispen, dampen, deppen, eappen, flippen, happen, hempen, hippen, kampen, karpen, kempen, koeppen, koppen, lappen, lupin, mcalpin, misshapen, open, phippen, pippen, poppen, reopen, ripen, rippon, saipan, sharpen, stepan, supan, tappan, tappen, tarpon, thigpen, thomspon, tippen, turpen, vancampen, vankampen, weapon, yaupon, zupan
Deepen sounds like:
dabney, daffin, dafna, daphne, dauphin, dauphinee, davin, davina, davino, deadpan, deafen, debaun, debnam, debona, debono, defame, defina, define, defino, dehaven, depina, deppen, devan, devane, devaney, devany, deveney, devenney, devenny, deveny, devin, devine, deviney, devinney, devino, devon, devona, devonian, diaphonia, dibona, dibuono, diffin, difm, divan, diven, divine, diviney, dobbin, dopamine, dubin, dubinin, duffin, dupin