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