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