Or search: colony, reliance, addiction, dependence, dependance, contingency, habituation, subordination
3 Syllables: SUU
centuries, century's, clemency, densities, embassies, emphases, enemies, enemy, enemy's, enmities, tenancy, tendencies, tendency
4 Syllables: USUU
ascendancy, ascendency, dependency, hegemony, inclemency, parentheses, propensities, solemnities
5 Syllables: UUSUU
independency, independently
6 Syllables: UUUSUU
plenipotentiaries

Found 24 words across 4 groupings.