Here's what rhymes with propulsor.
                        
                        
                    
                                Words that almost rhyme with propulsor
sulphur  sulfur  paler  duller  culture  color  butter  buffer  vulgar  molar  butler  bumper  bunker  tougher  buzzer  jumper  tuber  vulture  adjuster  bugger  duster  juster  putter  buster  hussar  pucker  tucker  another  number  mother  brother  cover  summer  suffer  wonder  younger  hunger  lover  rubber  rupture  supper  thunder  hunter  juncture  lumber  ocular  plunder  asunder  blunder  comer  cutter  gutter  lustre  muster  puncture  rudder  runner  shudder  shutter  youngster  drummer  gunner  hover  luster  mutter  plunger  rougher  sucker  tumbler  abductor  blubber  bluster  plumber  premolar  succor  muffler  plover  pustular  sputter  stutter  sunder  tricolor  cumber  dumpster  fucker  gazer  huckster  lugger  monger  mugger  structure  recover  cluster  conductor  sculpture  sculptor  flutter  slumber  uncover  clutter  ligature  coadjutor  erasure  outnumber  smother  crusher  filibuster  smuggler  agriculture  discover  midsummer  restructure  aquaculture  conjuncture  undercover  watercolor  embrasure  encumber  scrubber  instructor  acupuncture  constructor  horticulture  chronometer  counterculture  rediscover  substructure  pentameter  infrastructure  superstructure  cartographer  superconductor  semiconductor