Or search: baa, caw, coo, haw, hem, mew, moo, ray, tut, bark, bray, burp, crow, echo, fume
1 Syllable: S
2 Syllables: SU
2 Syllables: US
3 Syllables: SUU
3 Syllables: UUS
4 Syllables: UUUS

Found 262 words across 6 groupings. Skipped 81 excess words of a similar stem.