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