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