Here's what rhymes with communicandum.
                        
                        
                    
                                random  tandem  nonrandom  memorandum  Words that almost rhyme with communicandum
abandon  phantom  canton  tantum  bantam  dampen  plantain  zooplankton  phytoplankton  macadam  handsome  chasm  madam  ransom  madame  hansom  maxim  amalgam  datum  fathom  magnum  tantrum  sachem  transom  gladsome  talcum  pablum  platinum  spasm  plasm  sphagnum  tarmacadam  stratum  neoplasm  sanctum  phantasm  iconoclasm  enthusiasm  cytoplasm  substratum  protoplasm