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