Fremitus rhymes with:
calamitous, calamitous, emeritus, equitas, felicitous, gratuitous, gravitas, hippolytus, impetus, prophetess, riotous, solicitous
Fremitus sounds like:
fahrenheit's, farmhands, fermenta's, ferments, fernandes, fernandez, fernando's, forehands, forints, formants, formats, frantic, frantz, fremd's, frenetic, frentz, friend's, friends, friends', fronds, front's, frontage, fronts, frontz