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