Only one is “perfect” – genus

The next set of words should work well, though if you listen closely you’ll hear that the final vowel in -ness and the word “us” (in a phrase) usually makes a slightly different sound — because it receives a bit more accent than the UN-accented final syllable of “Venus”–

BETWEEN US, clean us, demean us, preen us, SEEN US, submarine us, wean us

cleanness, greenness, keenness, leanness, meanness

There are other “NEAR rhymes” that will work quite well. They do not match perfectly, but MOST of the sounds match and that is often enough. Best bets in this case are those that match all sounds except for the /n/ (and better the closer they come to the /n/, e.g., substituting /m/ which is VERY close).

GENIUS, ingenious

(Uncle) Remus

fetus

bleed us, breed us, HEED US, impede us, keyed us, LEAD US, NEED US, read us, speed us

BEAT US, cheat us, complete us, defeat us, greet us, MEET US, seat us

tedious, egregious

completeness, neatness

rhebus, grievous

BELIEVE US, deceive, LEAVE US, peave us, receive us, reprieve us