Here's what rhymes with menstruation.
nation aeration relation situation creation formation duration location station variation exploration inspiration rotation salvation installation valuation mutation probation starvation toleration donation oration dilation elation instigation legation ligation palpation privation information education operation application explanation generation evaluation foundation preparation radiation separation admiration declaration deviation elevation exploitation indication invitation liberation motivation obligation sensation taxation violation agitation allocation alteration aspiration decoration delegation estimation fixation implication inflammation irrigation irritation medication meditation notation plantation saturation temptation vacation vegetation vibration affiliation approbation attenuation aviation causation cessation derivation dilatation expiration fabrication federation filtration graduation habitation importation incubation infiltration insulation maturation mediation moderation modulation narration negation validation veneration vocation aberration adoration allegation appellation automation citation damnation exhortation exportation fibrillation gestation hydration imputation intimation invocation iteration masturbation perforation reparation sedation stagnation summation ulceration usurpation population association circulation corporation imagination integration observation occupation publication reputation translation activation adaptation appreciation correlation expectation illustration immigration inflation innovation isolation limitation migration preservation realization restoration revelation stimulation acceleration alienation celebration consultation deformation degradation destination dissertation domination excitation hesitation illumination imitation inclination indignation manipulation navigation nomination penetration propagation quotation recreation reservation respiration segregation simulation speculation termination ventilation 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conversation cooperation investigation legislation presentation regulation configuration conservation cultivation demonstration formulation modification orientation transportation appropriation arbitration assimilation collaboration computation confirmation consolidation continuation degeneration depreciation designation deterioration elimination emancipation frustration incorporation initiation manifestation negotiation oxidation proclamation proliferation reconciliation regeneration registration relaxation resignation utilization annexation annihilation assassination calibration certification civilisation compilation complication consolation dissociation evacuation exaggeration fermentation generalization humiliation ionization modernization notification remuneration socialization specialization stabilization subordination unification verification adjudication authentication cancellation confederation confiscation conformation connotation consecration consummation culmination dehydration devastation dispensation eradication gravitation hybridization immunization implantation inactivation inoculation instrumentation interpolation interrogation liquidation magnetization prolongation reclamation regurgitation sterilization urbanization utilisation vaccination organization communication concentration examination determination participation transformation accumulation calculation compensation implementation justification organisation accommodation anticipation approximation condemnation confrontation congregation coordination precipitation rehabilitation specification amplification articulation coagulation colonization condensation denomination dissemination globalization localization multiplication optimization preoccupation privatization pronunciation purification ratification sophistication stratification transplantation amalgamation augmentation capitulation centralization commendation conflagration crystallization denunciation deregulation extermination intensification intimidation magnification mortification nationalization normalization polymerization refrigeration renunciation resuscitation sedimentation segmentation simplification supplementation visualization classification identification representation differentiation discrimination characterization contamination contemplation documentation qualification recommendation clarification disintegration fragmentation gratification intoxication liberalization signification calcification capitalization categorization excommunication hospitalization ornamentation rationalization standardization synchronization experimentation industrialization reorganization argumentation conceptualization decentralization democratization diversification misrepresentation personification quantification Words that almost rhyme with menstruation
haven basin hasten occasion evasion equation invasion persuasion taken pagan shaken bacon laden maiden layman laymen shaman patron awaken forsaken straighten salesman mistaken undertaken statesman contagion overtaken tradesmen