Or search: fun, jest, joke, sport, comedy, waggery, clowning, funniness, jocularity
2 Syllables: SU
Dorothy, groceries, grocery, solely
3 Syllables: SUU
coterie, forestry, hopelessly, horribly, locally, morally, nobody, notably, notary, noteworthy, orally, ovaries, ovary, overly, oversee, poetry, Popery, probity, rosary, rotary, soberly, socially, soldierly, soldiery, totally, votary, woefully
4 Syllables: USUU
authority, diplomacy, majority, minority, priority, supposedly, upholstery
5 Syllables: UUSUU
irrevocably

Found 39 words across 4 groupings.