Here's what rhymes with fiff.
                        
                        
                    
                                if  stiff  def  sniff  skiff  whiff  riff  tiff  cliff  midriff  hieroglyph  Words that almost rhyme with fiff
is  his  this  fish  viz  sieve  hiss  sis  scythe  hes  fizz  shes  with  give  wish  miss  myth  bis  dish  kiss  dis  diss  pith  smith  pis  piss  swish  writhed  biz  kith  rive  whiz  writhe  forgive  abyss  bliss  amiss  quiz  dismiss  therewith  herewith  outlive  relive  remiss  forthwith  wherewith  premiss  jellyfish  chandeliers  monolith  reminisce  cuttlefish  silversmith  corroborative  lymph  nymph