2 Syllables: SU
bismuth, bridges, brigands, Britain's, Britons, busiest, business, chickens, Christmas, Dickens, dishes, eras, fishes, Griffith, image, isthmus, kisses, kitchens, kittens, linens, liquids, listens, listless, mischief, missions, mistress, peerage, pigeons, Plymouth, prisms, prisons, quickens, rhythms, ribbons, riches, richest, richness, ridges, schisms, Simmons, stiffness, swiftest, swiftness, switches, Symonds, synods, systems, theorems, thickens, vicious, village, villains, villas, visage, viscous, visions, vistas, witches, women's
3 Syllables: USU
additions, admissions, ambitions, ambitious, auspicious, capricious, collisions, commissions, conditions, decisions, delicious, divisions, editions, emissions, factitious, fictitious, forgiveness, Franciscans, incisions, judicious, lascivious, logicians, magicians, malicious, munitions, musicians, Narcissus, nutritious, oblivious, officious, omissions, partitions, patricians, pernicious, petitions, physicians, positions, prestigious, prodigious, propitious, provisions, religions, religious, revisions, seditious, suspicions, suspicious, technicians, traditions, transitions
4 Syllables: UUSU
acquisitions, admonitions, adventitious, apparitions, avaricious, coalitions, competitions, compositions, definitions, depositions, Dionysius, dispositions, disquisitions, exhibitions, expeditions, expeditious, expositions, impositions, inhibitions, injudicious, intuitions, irreligious, oppositions, politicians, prepositions, prohibitions, propositions, repetitions, requisitions, statisticians, superstitions, superstitious, suppositions, surreptitious, unpropitious, unsuspicious
5 Syllables: UUUSU
Found 149 words across 4 groupings. Skipped 4 excess words of a similar stem.