2 Syllables: SU
bison, Brian, brighten, Brighton, Bryan, Bryant, Byron, Byron's, China's, client, diamond, Dryden, frighten, giant, guidance, guises, heighten, Heinemann, Highland, Hiram, hybrids, Iceland, ices, ion, island, item, Ivan, Leiden, Leyden, licence, license, lichen, lighten, liken, lion, Lyman, Lyon, migrant, mileage, pliant, prices, prizes, ripen, rises, Ryan, science, scion, Sidon, silence, silent, Simon, Simon's, sion, siren, sizes, slices, spices, stipend, strident, tighten, Titan, trident, triumph, tyrant, viands, vibrant, vices, violence, violent, widen, Zion
3 Syllables: SUU
3 Syllables: USU
advices, alignment, alliance, appliance, assignment, asylum, atheism, compliance, compliant, comprises, confinement, connivance, consignment, contrivance, defiance, defiant, defilement, devices, enlighten, enliven, environ, excitement, Goliath, Hawaiian, horizon, incitement, indictment, Orion, refinement, reliance, reliant, subsidence, unlicensed
4 Syllables: UUSU
Found 108 words across 4 groupings. Skipped 43 excess words of a similar stem.