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