Or search: fee, tap, beak, bend, brow, bung, cone, cusp, flex, heel, hint, lean, peak, perk, push
1 Syllable: S
2 Syllables: SU
2 Syllables: US
3 Syllables: SUU
3 Syllables: UUS
4 Syllables: UUUS

Found 261 words across 6 groupings. Skipped 82 excess words of a similar stem.