2 Syllables: SU
Billings, bismuth, breeches, brigands, Britain's, Britons, busiest, business, chickens, Christmas, clearings, clippings, Dickens, dishes, ditches, earrings, eras, fishes, fittings, Gibbons, Griffith, Higgins, hisses, image, isthmus, kisses, kitchens, kittens, linens, liquids, listens, listless, livings, mischief, misses, missions, missive, mistress, Mrs, niches, peerage, pigeons, pillage, pitches, Plymouth, prisms, prisons, quickens, rhythms, ribbons, riches, richest, richness, ridges, schisms, shillings, siblings, Simmons, sittings, stiffness, stitches, swiftest, swiftness, switches, Symonds, synods, syringe, systems, theorems, thickens, tilings, trimmings, vicious, village, villains, villas, visage, viscous, visions, vistas, wishes, witches, women's
3 Syllables: USU
additions, admissions, ambitions, ambitious, auspicious, beginnings, capricious, collisions, commissions, conditions, decisions, delicious, derisive, dismisses, divisions, editions, emissions, enriches, envisage, factitious, fictitious, forgiveness, Franciscans, incentives, incisions, judicious, lascivious, logicians, magicians, malicious, misgivings, munitions, musicians, Narcissus, nutritious, oblivious, officious, omissions, partitions, patricians, permissive, pernicious, petitions, physicians, positions, prestigious, prodigious, propitious, provisions, religions, religious, resistless, revisions, seditious, submissive, 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, inauspicious, inhibitions, injudicious, intuitions, irreligious, oppositions, politicians, prepositions, prohibitions, propositions, repetitions, requisitions, statisticians, superstitions, superstitious, suppositions, surreptitious, unpropitious, unsuspicious
5 Syllables: UUUSU
Found 185 words across 4 groupings. Skipped 7 excess words of a similar stem.