Here's what rhymes with cesion.
                        
                        
                    
                                lesion  adhesion  cohesion  elision  artesian  Words that almost rhyme with cesion
season  heathen  reason  reafon  diesen  treason  uneven  diesem  threesome  secretion  deletion  accretion  preseason  depletion  excretion  repletion  postseason  completion  amphotericin  eaten  seamen  seaman  semen  elan  ian  zijn  eon  phaeton  didn  region  beaten  demon  weaken  deacon  deepen  legion  needn  beacon  freeman  renin  daemon  dn  sweeten  cheapen  paean  peon  wheaten  sequin  steepen  neaten  chieftain  freedmen  chorion  freedman  ruffian  cretin  pigpen  overeaten  boolean  lndian  occafion  unbeaten  collegian  fieldsman  policeman  plebeian  archdeacon  protean  polyhedron  tetrahedron  epicurean  plainclothesman