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