Here's what rhymes with selfexpansion.
                        
                        
                    
                                expansion  mansion  scansion  Words that almost rhyme with selfexpansion
chanson  damson  handsome  ransom  hansom  transom  passion  tation  banyan  fashion  abandon  fraction  barren  cannon  canon  extraction  faction  chaplain  ration  traction  baron  canyon  bastion  canton  caption  stallion  exaction  jasmine  lation  plantain  adaption  batten  talon  badman  badmen  reaction  happen  attraction  captain  companion  hadn  cabin  compassion  famine  sanction  wagon  dragon  gallon  salmon  fasten  inaction  satin  compaction  falcon  haben  saffron  blacken  bracken  dampen  fatten  flatten  impaction  infraction  latin  madmen  redaction  slacken  taxon  flagon  handgun  mammon  platen  batsman  dispassion  sadden  gammon  madden  scallion  trashcan  bandsman  flashgun  raglan  taxman  gasman  taxmen  sandmen  imagine  interaction  abstraction  contraction  grandson  battalion  diffraction  refraction  assassin  distraction  retraction  subtraction  plankton  hangman  medallion  reexamine  waxen  capstan  clansmen  contraption  counteraction  detraction  flaxen  gladden  stupefaction  landsman  refashion  clansman  triathlon  gyrfalcon  satisfaction  transaction  prolactin  draftsman  draughtsman  rarefaction  zooplankton  benefaction  draftsmen  diapason  overreaction  protraction  unfasten  gravamen  klaxon  pentathlon  refasten  vitrifaction  craftsman  liquefaction  petrifaction  upperclassman  rapscallion  malefaction  dissatisfaction  phytoplankton  putrefaction  underclassman