Here's what rhymes with summarises.
                        
                        
                    
                                rises  arises  sizes  prizes  guises  wises  apprizes  sises  comprises  marquises  incises  symbolizes  socializes  precises  reanalyses  circumcises  vulgarises  emphasizes  minimizes  specializes  stabilizes  improvises  polymerizes  economizes  hypnotizes  mesmerizes  pulverizes  familiarises  polarises  commercializes  tenderizes  exercises  recognizes  metabolizes  patronizes  exorcises  galvanizes  soliloquises  popularises  characterizes  destabilizes  reemphasizes  revolutionizes  particularises  Words that almost rhyme with summarises
prices  slices  vices  crisis  spices  typhus  devices  benefices  vitalises  paradises  lions  libels  lichens  ripens  lightens  likens  mynahs  mynas  sanitise  cycles  titles  trials  horizons  rifles  rivals  sirens  vials  widens  dials  finals  frightens  heightens  bridles  brightens  enlightens  tightens  baryons  bibles  camellias  dahlias  pariahs  titans  messiahs  naiads  vaginas  hydras  rupiahs  sidles  vinyls  bridals  livens  hymens  diamonds  arrivals  environs  highlands  hybrids  trifles  asylums  entitles  fibrils  reprisals  spirals  recitals  menials  enlivens  hyphens  siphons  bisons  papayas  recycles  syphons  pinyons  disciples  denials  revivals  stipends  dandelions  nightclubs  stifles  semifinals  antivirals  retrials  carnelians  mistrials  survivals  cotyledons  motorcycles  kilocycles  jeremiads  dicotyledons  monocotyledons