Or search: bloom, gonad, blossom, placenta, vertebrate
2 Syllables: SU
groceries, grocery
3 Syllables: SUU
coterie, homilies, nobody's, notary, noteworthy, ovary, overly, oversee, Popery, rosary, rotary, soberly, soldierly, soldiery, votary
4 Syllables: USUU
authorities, minorities, priorities, upholstery

Found 21 words across 3 groupings.