Words that have identical vowel-based rhyme sounds in the tonic syllable. Moreover, that tonic syllable must start with a different consonantal sound.
There are no pure rhymes for "p sound".
Words that have a pure rhyme on their last syllable only.
bound
    browned
      crowned
        downed
          drowned
            found
              frowned
                ground
                  hound
                    mound
                      pound
                        round
                          sound
                            wound
                              abound
                                aground
                                  around
                                    astound
                                      compound
                                        confound
                                          confound
                                            expound
                                              impound
                                                inbound
                                                  newfound
                                                    profound
                                                      propound
                                                        rebound
                                                          redound
                                                            renowned
                                                              resound
                                                                surround
                                                                  unbound
                                                                    unsound
                                                                      unwound
                                                                        ultrasound
                                                                          eastbound
                                                                            hidebound
                                                                              playground
                                                                                greyhound
                                                                                  inbound
                                                                                    westbound
                                                                                      snowbound
                                                                                        compound
                                                                                          confound
                                                                                            dumbfound
                                                                                              outbound
                                                                                                spellbound
                                                                                                  homebound
                                                                                                    horehound
                                                                                                      background
                                                                                                        bloodhound
                                                                                                          foreground
                                                                                                            southbound
                                                                                                              fairground
                                                                                                                earthbound
                                                                                                                  foxhound
                                                                                                                    campground
                                                                                                                      northbound
                                                                                                                        turnaround
                                                                                                                          battleground
                                                                                                                            runaround
                                                                                                                              underground
                                                                                                                                Words that "almost" rhyme on the vowel-based rhyme sound of the stressed syllable like: be/eat or maybe/shapely.
                                                                                                                                eastbound
                                                                                                                                  Rhymes made up of more than one word. For instance, "jealous" and "tell us" or "shaky" and "make me."