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