Grimaces rhymes with:
amos's, christmases, hippopotamuses, ramesses, thomas', thomas's, thomases, actress's, actresses, addidas's, addidases, adidas's, airbus's, aliases, amos's, apprentices, arias's, atlas's, biases, bonuses, canvases, canvasses, carcasses, cardenas's, catacosinos's, caucus's, caucuses, censuses, cetus's, choruses, christmases, circus's, columbus's, congress', congress's, congresses, countesses, crevices, cypress's, dallas's, damascus's, douglas's, douglass, dreyfus's, embarrasses, ethnos's, eyewitnesses, fetuses, focuses, fortas's, fortresses, gavras's, geniuses, goddesses, guinness's, heiresses, hippopotamuses, holvis's, hospice's, hospices, illnesses, injustices, irises, kansas's, kotsonis's, lexus's, likenesses, lotus's, lucas's, marcos's, marcus's, mattress's, maxus's, menaces, minuses, nautilus's, necklaces, nicholas's, nicklaus's, norris's, novices, office's, paribas's, poultices, prospectuses, ramesses, refocuses, repurchases, retroviruses, salinas's, sampras's, selinas's, sprogus's, stewardesses, stratus's, surpluses, tennis's, texas', thomas', thomas's, thomases, virus's, waitresses, walruses, wireless's, witness's, witnesses'
Grimaces sounds like:
garing, garms, garnes, garnica, garnish, garnishes, garnock, garnsey, garonzik, garron's, gawronski, gearan's, gearing, gehring, geraniums, gering, germain's, german's, germanic, germans, germans', germany's, germanys, germs, goehring, goering, goring, gorniak, gornick, gornik, graham's, grahams, grains, grames, gramm's, grammies, gramms, grammy's, grammys, grams, gramza, granese, grange, granges, grannies, grannis, granz, granzow, graunke, graying, green's, greene's, greenhouse, greenhouses, greeniaus, greening, greenish, greenness, greenough, greens, greens', greenwich, greenwich's, greinke, grenz, greunke, greying, grimace, grimes, grimm's, grimness, grimshaw, grinage, grinch, gring, gringo, gringos, grinning, grins, groaning, groans, groening, groins, gromek, gromes, gromyko, gronowski, gronski, groomes, grooming, grooms, growing, grumman's, gruneich, grunge, grungy, guarnaccia, guernsey, guernseys, gurney's, gurnsey