Here's what rhymes with passivation.
                        
                        
                    
                                nation  station  fixation  cessation  aeration  elation  situation  observation  separation  variation  elevation  inflation  innovation  salvation  sensation  taxation  aspiration  hesitation  vacation  affirmation  aviation  causation  dissipation  federation  oscillation  veneration  vocation  citation  innervation  iteration  oration  perforation  perspiration  sedation  summation  visitation  deflation  legation  vexation  information  education  operation  relation  creation  formation  generation  association  conversation  duration  foundation  location  publication  activation  admiration  conservation  cultivation  deviation  inspiration  invitation  isolation  liberation  preservation  restoration  revelation  rotation  violation  acceleration  agitation  allocation  decoration  dissertation  domination  estimation  excitation  imitation  initiation  irrigation  irritation  navigation  notation  oxidation  reservation  respiration  saturation  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designation  destination  frustration  inflammation  installation  medication  meditation  negotiation  nomination  plantation  proliferation  propagation  quotation  recreation  resignation  segregation  simulation  specification  temptation  termination  valuation  ventilation  aggregation  approbation  assassination  civilisation  colonization  consolation  dedication  deliberation  deprivation  dilatation  dislocation  dissemination  distillation  elaboration  emigration  exaggeration  excavation  fabrication  habitation  ionization  irradiation  litigation  maturation  mediation  moderation  modulation  mutation  polarization  probation  socialization  validation  verification  automation  cancellation  confiscation  conformation  connotation  consummation  dehydration  delineation  dispensation  elucidation  emulation  enumeration  exaltation  exhortation  fertilization  fibrillation  inactivation  interpolation  intimation  intonation  masturbation  ovulation  polymerization  punctuation  refutation  resuscitation  sanitation  stagnation  urbanization  usurpation  utilisation  vaccination  vindication  combination  consideration  examination  explanation  interpretation  circulation  classification  cooperation  corporation  determination  imagination  integration  investigation  participation  presentation  regulation  reputation  transformation  appreciation  compensation  correlation  expectation  exploitation  modification  organisation  stimulation  transportation  accommodation  alienation  approximation  consultation  degradation  depreciation  deterioration  elimination  emancipation  illumination  implication  inclination  indignation  manifestation  penetration  precipitation  proclamation  regeneration  registration  relaxation  speculation  utilization  annihilation  attenuation  calibration  certification  compilation  condensation  evacuation  fermentation  generalization  globalization  graduation  humiliation  importation  incarnation  incubation  infiltration  intoxication  mobilization  modernization  notification  optimization  ordination  privatization  ratification  replication  retaliation  signification  sophistication  specialization  abbreviation  adjudication  alternation  amputation  augmentation  authentication  calcification  categorization  commendation  conciliation  confederation  consecration  constellation  consternation  constipation  coronation  culmination  demarcation  denunciation  deportation  deputation  devaluation  diversification  elongation  eradication  exclamation  fluctuation  immunization  imputation  inauguration  intimidation  liquidation  menstruation  rationalization  reclamation  refrigeration  relocation  renunciation  segmentation  standardization  sterilization  stipulation  subjugation  visualization  organization  administration  concentration  calculation  configuration  demonstration  discrimination  formulation  orientation  appropriation  collaboration  computation  condemnation  confrontation  congregation  contamination  incorporation  qualification  amplification  articulation  clarification  coagulation  complication  denomination  disintegration  gratification  liberalization  localization  preoccupation  pronunciation  purification  remuneration  retardation  stabilization  stratification  unification  amalgamation  capitalization  capitulation  centralization  conflagration  deregulation  duplication  exportation  extermination  hospitalization  hybridization  implantation  inoculation  interrogation  magnetization  magnification  mortification  nationalization  normalization  personification  prolongation  quantification  regurgitation  repudiation  sedimentation  simplification  synchronization  identification  representation  characterization  consolidation  contemplation  continuation  coordination  documentation  manipulation  recommendation  reconciliation  rehabilitation  fragmentation  industrialization  subordination  transplantation  crystallization  decentralization  democratization  intensification  communication  accumulation  implementation  multiplication  reorganization  argumentation  instrumentation  ornamentation  supplementation  experimentation  conceptualization  excommunication  misrepresentation  Words that almost rhyme with passivation
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