Or search: bur, dig, fan, gut, pit, tip, bail, bone, burl, burr, cull, dump, hull, husk, kern
1 Syllable: S
2 Syllables: SU
2 Syllables: US
3 Syllables: SUU
3 Syllables: UUS
4 Syllables: UUUS

Found 377 words across 6 groupings. Skipped 192 excess words of a similar stem.