Here's what rhymes with lightheavyweight.
                        
                        
                    
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wage  weighed  wade  made  laid  page  paid  shape  rage  shade  tape  cage  gauge  maid  rape  bade  fade  raid  sage  arrayed  babe  cape  gage  swayed  jade  stage  trade  played  grade  stayed  blade  prayed  forbade  grape  obeyed  parade  surveyed  evade  repaid  scrape  spade  sprayed  braid  frayed  outweighed  sh  staid  strayed  afraid  decade  escape  delayed  engage  persuade  invade  unpaid  decayed  arcade  disobeyed  dissuade  homemade  overlaid  pervade  stockade  videotape  displayed  betrayed  brigade  conveyed  blockade  crusade  cascade  degrade  dismayed  upgrade  grenade  lemonade  masquerade  renegade  portrayed  barricade  promenade  retrograde  waste  waist  based  faced  shaped  taste  faint  paint  haste  saint  baked  chased  paste  quaint  chaste  laced  paced  raced  raped  taint  raked  taped  placed  traced  spaced  acquaint  braced  draped  erased  scraped  effaced  graced  staked  replaced  escaped  embraced  debased  encased  vouchsafed  displaced  restraint  disgraced  distaste  misplaced  complaint  constraint