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