1 Syllable: S
2 Syllables: SU
3 Syllables: USU
4 Syllables: UUSU
abdication, aberration, abnegation, abrogation, acceptation, acclamation, accusation, activation, adaptation, admiration, adoration, adulation, affectation, affirmation, aggravation, aggregation, agitation, alienation, allegation, allocation, alteration, altercation, amputation, animation, annexation, annotations, appellation, application, approbation, arbitration, aspiration, attestation, augmentation, automation, aviation, avocation, calculation, calibration, cancellation, celebration, coloration, combination, commendation, commutation, compensation, compilation, complication, computation, concentration, condemnation, condensation, confirmation, confiscation, conflagration, conformation, confrontation, congregation, conjugation, connotation, consecration, conservation, consolation, constellation, consternation, constipation, consultation, consummation, contemplation, conversation, convocation, cooperation, coronation, corporation, correlation, culmination, cultivation, declamation, declaration, declination, decoration, dedication, defamation, deformation, degradation, dehydration, deification, delegation, demarcation, demonstration, deportation, depredations, deprivation, deputation, derivation, derogation, desecration, designation, desolation, desperation, destination, detestation, devastation, deviation, dilatation, dislocation, dispensation, disputation, dissertation, dissipation, distillation, divination, domination, duplication, education, elevation, elongation, emanation, embarkation, emendations, emigration, emulation, entertainment, estimation, evocation, exaltation, excavation, excitation, exclamation, execration, exhalation, exhortation, expectation, expiation, expiration, explanation, explication, exploitation, exploration, exportation, exultation, fabrication, fascination, Federation, fermentation, fluctuation, formulation, fornication, fragmentation, generation, germination, graduation, gravitation, habitation, hesitation, illustration, imitation, immigration, implication, importation, imprecations, impregnation, imputation, incantation, incarnation, inclination, incubation, indentation, indication, indignation, infiltration, inflammation, information, inhalation, innovation, inspiration, installation, instigation, insulation, integration, intimation, intonation, inundation, invitation, invocation, irrigation, irritation, isolation, iteration, lamentation, legislation, liberation, limitation, liquidation, litigation, lubrication, machinations, maturation, mediation, medication, meditation, menstruation, ministration, mitigation, moderation, modulation, molestation, motivation, mutilation, navigation, nomination, obligation, observation, occupation, operation, ordination, oscillation, ostentation, oxidation, palliation, penetration, perforation, peroration, perspiration, perturbation, population, preparation, presentation, preservation, proclamation, procreation, profanation, prolongation, promulgation, propagation, protestation, provocation, publication, punctuation, radiation, realisation, realization, recantation, recitation, reclamation, recreation, reformation, refutation, registration, regulation, reinstatement, relaxation, relocation, renovation, reparation, replication, reprobation, reputation, reservation, resignation, respiration, restoration, retardation, revelation, revocation, salutation, sanitation, saturation, Scandinavian, segmentation, segregation, separation, sequestration, simulation, situation, speculation, spoliation, stimulation, stipulation, subjugation, sublimation, subterranean, suffocation, supplication, tabulation, termination, toleration, transformation, transmigration, transmutation, transplantation, transportation, trepidation, tribulation, ulceration, ultimatum, undulations, usurpation, vaccination, vacillation, validation, valuation, variation, vegetation, veneration, ventilation, vindication, violation, visitation
5 Syllables: UUUSU
abbreviation, abomination, acceleration, accentuation, accommodation, accumulation, adjudication, administration, adulteration, affiliation, alleviation, amalgamation, amelioration, amplification, annihilation, Annunciation, anticipation, appreciation, appropriation, approximation, argumentation, articulation, assassination, assimilation, association, attenuation, authorization, capitulation, centralization, certification, civilisation, civilization, clarification, classification, coagulation, codification, collaboration, colonisation, colonization, commemoration, communication, concatenation, conciliation, confederation, configuration, conglomeration, congratulation, consideration, consolidation, contamination, continuation, coordination, corroboration, crystallization, degeneration, deliberation, delineation, denomination, denunciation, depopulation, depreciation, desideratum, determination, devaluation, disapprobation, discoloration, discrimination, disinclination, disintegration, dissemination, dissimulation, dissociation, documentation, domestication, edification, ejaculation, elaboration, elimination, elucidation, emancipation, enumeration, enunciation, Episcopalian, equalization, equivocation, eradication, evacuation, evaluation, evaporation, exaggeration, examination, exasperation, exhilaration, expostulation, expropriation, extenuation, extermination, extrapolation, falsification, fertilization, fortification, glorification, gratification, hallucination, humiliation, idealization, illumination, imagination, impersonation, implementation, improvisation, inauguration, incarceration, incorporation, infatuation, initiation, inoculation, insinuation, interpolation, interpretation, interrelation, interrogation, intimidation, intoxication, investigation, irradiation, justification, localization, magnification, manifestation, manipulation, mechanization, Mediterranean, misapplication, misinformation, mobilization, modernization, modification, mortifications, multiplication, mystification, negotiation, neutralization, notification, nullification, obliteration, organisation, organization, orientation, origination, ornamentation, pacification, participation, perpetuation, polarization, precipitation, predestination, preoccupation, procrastination, proliferation, pronunciation, propitiation, purification, qualification, ramifications, ratification, recommendation, recrimination, rectification, recuperation, refrigeration, regeneration, reincarnation, reiteration, remuneration, renunciation, representation, repudiation, resuscitation, retaliation, sanctification, sedimentation, signification, simplification, socialization, solicitation, sophistication, specialization, specification, stabilization, standardization, sterilization, stratification, subordination, transfiguration, unification, urbanization, utilisation, utilization, verification, versification, visualization, vituperation
6 Syllables: UUUUSU
7 Syllables: UUUUUSU

Found 755 words across 7 groupings. Skipped 256 excess words of a similar stem.