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