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