Vietnam rhymes with:
petrovietnam, nom, petrovietnam, phnom, surinam, alm, altom, amraam, anscom, anscomb, aplomb, balm, basam, baucom, becalm, blom, bohm, bom, bomb, brahm, brom, bromm, calm, cdrom, cocom, com, crom, dohm, dom, embalm, flom, fromm, fromme, glomb, grom, guam, halm, hom, homme, islam, krom, kromm, lomb, malm, mam, mom, nom, overstrom, palm, palme, petrovietnam, phnom, pogrom, prom, qom, quam, rom, romm, saam, salaam, salam, salm, schrom, som, strahm, strom, stromme, suddam, surinam, thom, throm, tom, yom, zalm
Vietnam sounds like:
vaden, vadim, vadney, vidonia, viedma, vitamin, vuitton