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