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