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