Or search: analog, analogue, homogeny, likeness, sameness, homology, isomorphy, dissimilar, uniformity, homomorphy, isomorphism, homomorphism, approximation
3 Syllables: SUU
charities, Cherokee, clarity, destinies, elegies, enemies, enemy's, Genevieve, heresies, jealousies, legacies, melodies, memories, parity, parodies, parody, pedigrees, Pericles, rarity, recipes, remedies, reveries, terribly, therapy, treasuries, verities, verity
4 Syllables: USUU
accessories, amenities, barbarities, barbarity, celerity, dexterity, disparities, disparity, extremities, hilarity, invariably, polarity, posterity, prosperity, sincerity, temerity
5 Syllables: UUSUU
familiarity, popularity, psychotherapy, regularity, similarity, solidarity
6 Syllables: UUUSUU
irregularities, irregularity, peculiarities, peculiarity

Found 53 words across 4 groupings.