Here's what rhymes with flanquement.
                        
                        
                    
                                non  gnawn  don  gone  von  con  dawn  lawn  yon  hon  wan  bon  fawn  han  pawn  schon  yawn  bonne  khan  sawn  sonne  vpon  faun  john  upon  drawn  spawn  swan  whereon  yuan  npon  brawn  prawn  tenon  thereon  salon  baton  begone  chiffon  pecan  aileron  amazon  hereon  lasagne  neocon  frogspawn  phenomenon  undergone  withdrawn  whereupon  denouement  foregone  pantheon  echelon  marathon  octagon  redrawn  chaperon  forgone  antiphon  predawn  woebegone  autobahn  carillon  trimaran  emoticon  outdrawn  methadon  thereupon  lexicon  polygon  automaton  positron  rapprochement  hexagon  paragon  hereupon  overdrawn  pentagon  epsilon  mastodon  tarragon  leprechaun  cordovan  upsilon  heptagon  pantechnicon  Words that almost rhyme with flanquement
mom  nom  mam  long  wrong  com  song  calm  bomb  palm  bom  homme  vom  balm  gong  rom  som  tom  dong  thong  pom  pong  tong  bong  iamb  along  quam  throng  prom  prong  twang  embalm  qualm  sarong  consomme  mahjong  strong  belong  aplomb  singsong  salaam  erelong  nightlong  becalm  dingdong  lifelong  prolong  intercom  cardamom  pogrom  yearlong  firebomb  supermom  livelong  morn  mourn  born  corn  borne  torn  worn  barn  horn  warn  yarn  thorn  shorn  darn  porn  tarn  lorn  scorn  sworn  adorn  unborn  unworn  forlorn  reborn  outworn  careworn  forborne  timeworn  lowborn  unicorn  waterborne  forewarn  forsworn  foresworn  sweetcorn  firstborn  stillborn  lovelorn  peppercorn