Open rhymes with:
copen, koeppen, reopen, alagappan, aspen, campen, capen, cheapen, compean, copen, crippen, crispen, dampen, deepen, deppen, eappen, flippen, happen, hempen, hippen, kampen, karpen, kempen, koeppen, koppen, lappen, lupin, mcalpin, misshapen, phippen, pippen, poppen, reopen, ripen, rippon, saipan, sharpen, stepan, supan, tappan, tappen, tarpon, thigpen, thomspon, tippen, turpen, vancampen, vankampen, weapon, yaupon, zupan
Open sounds like:
o'banion, o'bannon, obama, obanion, obannon, obon, offen, opheim, opine, opinion, opium, oppenheim, oven, ovum