2 Syllables: SU
bitten, brigands, Brigham, Britain, Britain's, Briton, chicken, christened, clearance, Cyprian, Dickens, Dickson, diction, dictum, difference, different, Dillon, distance, distant, dition, Dixon, driven, ference, fiction, fission, fitted, flippant, friction, frigid, Gibbon, Gibson, Gideon, given, glistened, gypsum, hidden, Ibn, idiom, ism, kitchen, kitten, knitted, linen, liquid, listed, listen, Lytton, mission, Nixon, pigeon, piston, Pitman, pittance, pitted, printed, prism, prison, quicken, rhythm, ribbon, ridden, rigid, risen, riven, schism, serum, shipment, sicken, Sigmund, Simmons, sixpence, smitten, stiffen, stricken, striven, Symonds, Synod, system, theorem, thicken, Titian, Tristram, twisted, villain, vision, vivid, Whitman, wicked, women, women's, written
3 Syllables: SUU
3 Syllables: USU
addiction, addition, adherence, adherent, admission, admittance, admitted, affliction, ambition, appearance, arisen, ascription, assistance, assistant, assisted, attrition, benignant, Bouillon, cognition, coherence, coherent, collision, commission, commitment, condition, conscription, consisted, consistence, consistent, constriction, contrition, conviction, decision, deficient, deliverance, depiction, derision, description, division, edition, efficient, Egyptian, Elysian, emission, emitted, envision, equipment, excision, existed, existence, existent, forgiven, Franciscan, fruition, ignition, imprison, incipient, incision, indifference, indifferent, indignant, infliction, inscription, insipid, insisted, insistence, insistent, logician, Macmillan, magician, malignant, meridian, midshipman, munitions, musician, nutrition, omission, omitted, omniscience, omniscient, Parisian, partition, patrician, perdition, permission, permitted, persistence, persistent, petition, physician, position, precision, prediction, prescription, proficient, proscription, provision, reappearance, recipient, religion, remission, remittance, rendition, resistance, resistant, resisted, restriction, revision, rewritten, sedition, submission, submitted, subscription, subsistence, sufficient, suspicion, technician, tradition, transcription, transition, transmission, transmitted, tuition, unbidden, unwritten, volition
3 Syllables: UUS
4 Syllables: UUSU
abolition, acquisition, admonition, ammunition, apparition, benediction, beneficent, circumcision, coalition, coefficient, coexistence, competition, composition, concomitant, contradiction, crucifixion, definition, demolition, deposition, dereliction, disappearance, disposition, disquisition, ebullition, electrician, equidistant, equilibrium, erudition, exhibition, expedition, exposition, imposition, incoherence, incoherent, inconsistent, indecision, inefficient, inhibition, Inquisition, insufficient, interference, intermission, intermittent, intuition, irreligion, jurisdiction, malnutrition, nonexistent, opposition, perseverance, politician, precondition, premonition, preposition, prohibition, proposition, recognition, reminiscence, reminiscent, repetition, requisition, rhetorician, statistician, superscription, superstition, supervision, supposition, transposition
5 Syllables: UUUSU
academicians, decomposition, indisposition, interposition, juxtaposition, mathematician, metaphysician, predisposition, presuppositions, superposition
Found 297 words across 6 groupings. Skipped 114 excess words of a similar stem.