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