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

Words that almost rhyme with underactivation

haven hasten occasion basin persuasion evasion invasion equation

shaken shaman taken pagan awaken bacon laden maiden layman laymen undertaken patron salesman straighten mistaken statesman contagion forsaken overtaken tradesmen