Here's what rhymes with opendrain.
                        
                        
                    
                                brain  plain  plane  rain  reign  train  ln  drain  lane  lain  rein  main  gain  pain  chain  grain  strain  vain  vein  cane  slain  sane  terrain  crane  fain  pane  bane  mane  tain  twain  vane  wane  deign  feign  sprain  arraign  thane  wain  obtain  remain  domain  attain  retain  complain  entertain  stain  profane  regain  aeroplane  detain  pertain  ordain  arcane  butane  germane  inane  moraine  skein  urbane  romaine  swain  retrain  murrain  ingrain  explain  maintain  insane  refrain  cocaine  disdain  humane  restrain  abstain  constrain  mundane  certaine  humaine  overlain  appertain  monoplane  urethane  windowpane  chicane  reattain  contain  campaign  sustain  ascertain  champagne  hurricane  cellophane  halothane  inhumane  hydroplane  wholegrain  preordain  reexplain  sugarcane  legerdemain  polyurethane  coxswain  demimondaine  foreordain  Words that almost rhyme with opendrain
blame  lame  same  came  name  claim  game  frame  fame  flame  shame  tame  dame  maim  became  acclaim  inflame  aflame  rename  declaim  defame  ballgame  proclaim  reclaim  disclaim  quitclaim  exclaim  overcame  filename  selfsame  counterclaim  aspartame  forename