Ohm's rhymes with:
biomes, combes, combs, dome's, domes, foams, gnomes, gromes, holmes, home's, homes, homes', nome's, nvhomes, ohms, roams, rome's, thomes, tomes
Ohm's sounds like:
oehmens, ohioans, ohms, ohnemus, omaha's, omans, omega, omens, ominous, onassis, onassis', onassis's, once, one's, oneness, oneok, ones, ones', onex, onex's, ong, onions, onishi, ons, onus, onyx, ounce, ounces, owen's, owens, owens's, owing, owings, owning, owns