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