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