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