Here's what rhymes with defamation.
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invitation migration restoration rotation taxation agitation alienation allocation anticipation aspiration confirmation decoration deformation degradation elimination excitation fixation inclination installation irritation medication meditation navigation nomination oxidation penetration plantation respiration saturation temptation valuation vegetation vibration annihilation assassination authorization aviation causation deprivation dissemination emigration excavation expiration federation fermentation habitation ionization litigation maturation mediation moderation mutation ordination starvation validation aberration adoration allegation alternation appellation conformation consummation coronation deputation emulation exclamation hydration inhalation innervation intonation iteration ovulation perforation perspiration perturbation provocation reclamation renovation sanitation ulceration usurpation vaccination population application combination examination association circulation civilization conversation determination imagination integration legislation occupation participation preparation radiation regulation reputation transformation translation activation adaptation conservation correlation demonstration differentiation exploration illustration liberation limitation modification motivation obligation realization stimulation accommodation alteration approximation assimilation celebration degeneration frustration illumination implication indignation initiation proclamation propagation quotation recreation segregation simulation speculation ventilation accusation affiliation aggregation annexation approbation attenuation certification civilisation consolation denomination dislocation dissociation evaporation filtration modulation notification polarization probation ratification replication specialization toleration verification adjudication affectation cancellation capitulation castration commendation connotation consternation culmination dehydration delineation demarcation denunciation elongation elucidation enumeration exhortation fluctuation imputation interpolation interrogation masturbation punctuation refutation reparation segmentation stipulation subjugation urbanization vindication organization concentration consideration cooperation corporation evaluation identification investigation publication appreciation compensation cultivation discrimination expectation exploitation formulation justification organisation orientation transportation acceleration collaboration condemnation confrontation consultation contamination coordination deterioration emancipation negotiation recommendation regeneration registration relaxation specification utilization amplification calibration clarification colonization compilation condensation deliberation elaboration evacuation exaggeration fabrication fragmentation generalization graduation gratification humiliation importation incarnation incubation infiltration intoxication irradiation mobilization modernization optimization privatization pronunciation purification realisation retardation signification socialization sophistication subordination unification abbreviation amalgamation amputation augmentation authentication conciliation confederation confiscation consecration constellation constipation deportation deregulation devaluation duplication eradication exaltation exportation extermination fertilization fibrillation gravitation immunization implantation inauguration intimidation liquidation menstruation mortification prolongation regurgitation relocation renunciation resuscitation sedimentation sterilization visualization administration communication classification representation accumulation calculation configuration implementation appropriation arbitration computation congregation consolidation contemplation continuation depreciation documentation incorporation manipulation precipitation proliferation qualification reconciliation rehabilitation articulation coagulation complication disintegration localization preoccupation remuneration retaliation stabilization stratification transplantation calcification categorization conflagration crystallization diversification hybridization inactivation inoculation instrumentation intensification magnification nationalization ornamentation personification polymerization quantification rationalization refrigeration repudiation standardization supplementation synchronization utilisation interpretation characterization manifestation experimentation globalization liberalization multiplication reorganization argumentation capitalization centralization excommunication magnetization normalization simplification decentralization democratization hospitalization industrialization misrepresentation conceptualization Words that almost rhyme with defamation
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