Here's what rhymes with oscillates.
                        
                        
                    
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rapes  shapes  grapes  raids  tapes  capes  drapes  scrapes  grades  shades  trades  blades  fades  maids  arcades  babes  braids  glades  accolades  escapes  pervades  parades  spades  upgrades  evades  tirades  decades  brigades  barricades  cascades  crusades  grenades  invades  colonnades  degrades  escapades  persuades  blockades  brocades  masquerades  stockades  palisades  videotapes  balustrades  promenades  renegades  race  lakes  lace  rakes  case  place  face  makes  base  takes  grace  trace  breaks  pace  chase  saints  tastes  cakes  paints  vase  wastes  brace  brakes  erase  faiths  flakes  shakes  wakes  apace  mace  awakes  pastes  waists  faints  fakes  maths  safes  space  fireplace  snakes  stakes  partakes  efface  overtakes  steaks  debase  forsakes  complaints  replace  disgrace  embrace  restraints  displace  undertakes  retrace  deface  interlace  constraints  database  interface  commonplace  mistakes  aerospace  cyberspace  reiterates  anyplace  diastase  pertinacious  rattlesnakes  marketplace