Here's what rhymes with tough.
                        
                        
                    
                                buff  puff  duff  rough  stuff  bluff  cuff  huff  muff  ruff  luff  guff  enough  snuff  slough  gruff  rebuff  fluff  scuff  scruff  Words that almost rhyme with tough
of  does  us  bus  dove  pus  buzz  buss  above  love  thus  plus  rush  brush  blush  fuss  hush  lush  truss  plush  shove  twas  beauteous  gush  mus  mush  muss  breve  cuss  fuzz  nus  crush  flush  glove  thrush  slush  fewness  discuss  thereof  whereof  hereof  schemas  hairbrush  minibus  underbrush  superfluous  mellifluous  gulf  engulf