Oien rhymes with:
groene, hoene, schoene, thoene, acetylcholine, alexandrine, alphonsine, amrine, austine, benedictine, benzine, benzodiazepine, berezine, bernadene, bernardin, berstein, blitstein, bobzien, brecheen, bridenstine, celene, chlorine, clarine, colchicine, correne, damaclean, dechene, dentine, derstine, deschene, dexfenfluramine, dorene, duchene, durene, earlene, eleen, elene, emogene, erlene, fabien, faustine, fenfluramine, gangrene, gradstein, groene, grudzien, haseltine, hedeen, herendeen, hesseltine, hoene, horine, howenstine, ilene, isleen, kamin, karabin, kwiecien, levene, lindeen, lipoprotein, litalien, lundeen, lupien, lurlene, lysine, marien, mcerlean, methamphetamine, mishkin, morphine, nerine, nifedipine, o'guin, oguin, phenylthaline, pristine, pyroxene, rexene, rosene, rudeen, rudenstein, ryanodine, samarin, sandeen, sapien, sasseen, sawin, schoene, semien, shirlene, shorenstein, simien, stempien, sundeen, tarin, therien, therrien, thoene, vanalstine, vereen, verene, waterstein, whetstine, zapien
Oien sounds like:
o'hanian, o'mahoney, o'mahony, oana, oanh, oehme, oehmen, oeien, ohanian, ohioan, ohm, ohmae, ohman, ohmann, oma, omaha, omahoney, omahony, oman, omani, omen, ommen, omni, omonia, on, ona, onan, onawa, one, one-way, oney, onion, onnen, onni, onno, ono, oona, owen, own, oyama, oyen