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