2 Syllables: SU
bidden, bidding, billing, bitten, bridging, brigands, Brigham, brimming, bristling, Britain, Britain's, Briton, cheering, chicken, chilling, chipping, christened, christening, Christian, clearance, clearing, clicking, Clifton, clipping, crippling, Dickens, difference, different, differing, digging, Dillon, dipping, distance, distant, dition, drifting, drilling, dripping, driven, earrings, fearing, ference, filling, fishing, fission, fitting, flippant, flitting, gearing, getting, Gibbon, giggling, given, giving, glistened, glistening, Griffin, grinning, gripping, hidden, Higgins, hissing, hitting, Ibn, Islam, ism, itching, kicking, killing, Kipling, kissing, kitchen, kitten, knitting, licking, lifting, linen, Lisbon, listen, listening, listens, listing, lithium, living, Lytton, middling, Mifflin, milling, miscreant, missing, mission, nearing, nibbling, picking, pigeons, pinning, piston, pitching, pittance, pitting, pricking, printing, prism, prison, quicken, quitting, rearing, rhythm, ribbon, Richmond, ridden, ridding, rigging, ripping, rippling, risen, risking, riven, schism, scribbling, Scythian, serum, shearing, shifting, shilling, shipping, siblings, sicken, sifting, Simmons, sinning, sipping, sitting, skimming, skipping, slipping, smiting, smitten, sneering, sniffing, spilling, spinning, spitting, splitting, steering, sticking, stiffen, stiffening, stitching, stricken, stripling, stripping, striven, swimming, switching, Symonds, syringe, system, tearing, theorem, thicken, thinning, thrilling, ticking, tilings, tilling, tipping, Titian, trickling, trimming, tripping, Tristram, twisting, twitching, villain, vision, Vivian, whipping, whistling, willing, winning, wisdom, wishing, women, women's, writhing, written
3 Syllables: SUU
3 Syllables: USU
abridgment, addition, adherence, adherent, adhering, admission, admittance, admitting, ambition, appearance, appearing, arisen, assistance, assistant, assisting, attrition, befitting, beginning, bewitching, Bouillon, cognition, coherence, coherent, collision, commission, committing, condition, consistence, consistent, consisting, contrition, decision, deficient, deliverance, derision, dismissing, distilling, division, edition, efficient, Elysian, Elysium, emission, emitting, enlisting, enlistment, enriching, enrichment, envision, equipping, excision, existence, existent, existing, forbidding, forgiven, forgiving, Franciscan, fruition, fulfilling, ignition, imprison, incision, indifference, indifferent, insistence, insistent, insisting, instilling, logician, Macmillan, magician, misgiving, munitions, musician, nutrition, oblivion, omission, omitting, omniscience, omniscient, Parisian, partition, patrician, perdition, permission, permitting, persistence, persistent, persisting, petition, physician, position, precision, proficient, provision, reappearance, reappearing, religion, remission, remittance, remitting, rendition, resistance, resistant, resisting, revision, rewritten, sedition, submission, submitting, subsistence, subsisting, sufficient, suspicion, technician, thanksgiving, tradition, transition, transmission, transmitting, tuition, unbidden, unchristian, unwilling, unwitting, unwritten, volition
4 Syllables: UUSU
abolition, acquisition, admonition, ammunition, apparition, beneficent, circumcision, coalition, coefficient, coexistence, competition, composition, concomitant, definition, demolition, deposition, disappearance, disappearing, disposition, disquisition, domineering, ebullition, electrician, engineering, equidistant, erudition, exhibition, expedition, exposition, imposition, incoherence, incoherent, inconsistent, indecision, inefficient, inhibition, Inquisition, insufficient, interference, interfering, intermission, intermittent, intuition, irreligion, malnutrition, nonexistent, opposition, perseverance, persevering, pioneering, politician, precondition, preexisting, premonition, preposition, prohibition, proposition, recognition, reminiscence, reminiscent, repetition, requisition, rhetorician, statistician, superstition, supervision, supposition, transposition, unremitting, volunteering
5 Syllables: UUUSU
academicians, decomposition, electioneering, indisposition, interposition, juxtaposition, mathematician, metaphysician, predisposition, presuppositions, superposition
Found 397 words across 5 groupings. Skipped 107 excess words of a similar stem.