Here's what rhymes with fennen.
                        
                        
                    
                                pennon  Words that almost rhyme with fennen
venom  phenom  lemon  denim  plenum  seven  engine  heaven  session  cession  ensign  felon  heron  vegan  hessian  section  mention  tension  lesson  weapon  pension  threaten  lessen  reckon  resin  tendon  ascension  dentin  headman  leaden  leaven  melon  headmen  henchmen  airman  beckon  chevron  deaden  freshen  gentian  henchman  hempen  penman  redden  deafen  attention  possession  affection  chairman  eleven  invention  accession  obsession  recession  secession  dissension  freshman  lengthen  pepsin  pectin  sexton  lepton  stepson  destine  bellman  headsman  kelvin  question  direction  election  exception  extension  infection  intention  perception  profession  selection  aggression  convention  correction  dimension  perfection  prevention  reception  succession  brethren  concession  confession  oppression  procession  retention  strengthen  suppression  suspension  deception  detention  dissection  erection  inception  resection  defection  ejection  distension  distention  abstention  penguin  bisection  subvention  indention  pressman  refection  expression  collection  connection  conception  depression  impression  intervention  reflection  suggestion  detection  discretion  injection  inspection  objection  rebellion  rejection  apprehension  connexion  contention  hypertension  intestine  regression  repression  resurrection  deflection  digestion  exemption  insurrection  subjection  convection  inflection  ingestion  intercession  dejection  digression  inattention  pretension  declension  reflexion  abjection  confection  inflexion  reinvention  repossession  selectman  supervention  protection  compression  intersection  progression  projection  redemption  complexion  congestion  imperfection  condescension  disaffection  reelection  dispossession  indirection  interception  preemption  redirection  watermelon  circumvention  concretion  reinfection  prepossession  reprehension  comprehension  recollection  transgression  contravention  disinfection  indigestion  indiscretion  disconnection  interjection  misdirection  rhododendron  nonaggression  genuflection  contraception  introspection  misconception  predilection  decompression  misapprehension  circumspection  retrogression  nonintervention  preconception  retrospection  delicatessen  autosuggestion  interconnection  incomprehension