Here's what rhymes with ousai.
                        
                        
                    
                                high  thy  vi  hi  shy  sigh  fi  hy  thigh  vie  psi  hai  cy  fy  sy  thei  phi  by  my  why  die  lie  y  buy  fly  sky  guy  tie  bi  bye  chi  dye  nigh  pi  pie  spy  thai  dei  fry  ly  quae  rye  sly  ty  wir  awry  lye  mai  muy  nai  wry  kai  lai  luy  mei  tai  wai  sty  stye  slier  dry  try  cry  defy  ply  pry  tri  trie  pri  edify  spry  turfy  apply  supply  thereby  deny  nearby  rely  whereby  hereby  verify  belie  terrify  typify  untie  overlie  vilify  aquae  bonsai  deify  ossify  vivify  amebae  lanai  scurfy  shanghai  ripply  banzais  overbuy  reply  imply  clarify  modify  specify  signify  testify  certify  goodbye  notify  alibi  nullify  pacify  ratify  rectify  samurai  unify  decry  pupae  amoebae  codify  descry  dignify  liquefy  mollify  ramify  acidify  firefly  mystify  retry  triply  blowfly  horrify  petrify  stupefy  liquify  overfly  scarify  versify  barfly  mummify  prettify  vitrify  yuppify  identify  justify  occupy  satisfy  comply  nuclei  qualify  alkali  classify  simplify  butterfly  glorify  gratify  purify  underlie  alveoli  amplify  fortify  magnify  standby  beautify  falsify  lullaby  solidify  termini  crucify  mortify  resupply  ultrahigh  calcify  misapply  reunify  beatify  drachmai  gentrify  speechify  syllabify  dandify  stimuli  intensify  quantify  diversify  indemnify  objectify  oversupply  personify  demystify  electrify  stratify  stultify  emulsify  revivify  hyperbolae  refortify  solemnify  multiply  exemplify  detoxify  dragonfly  reclassify  cumuli  dissatisfy  declassify  disqualify  oversimplify  preoccupy  misidentify  transmogrify