WikiRhymer has about 6,000 rhyming words and phrases for "water" starting with...

daughter
    slaughter
      Lawter
        Straughter
          • like lambs to the slaughter
          Pure Rhyme Set #1 of 1 (Add to/Edit Set Members)
          Words that have a pure rhyme on their last syllable only.
          seawater
            sea water
              End Rhyme Set #1 of 657 (Add to/Edit Set Members)
              doctor
                Wachter
                  • couch doctor
                  End Rhyme Set #2 of 657 (Add to/Edit Set Members)
                  author
                    Rother
                      End Rhyme Set #3 of 657 (Add to/Edit Set Members)

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                      Words that "almost" rhyme on the vowel-based rhyme sound of the stressed syllable like: be/eat or maybe/shapely. (Click for more info)
                      doctor
                        Wachter
                          • couch doctor
                          Near Rhyme Set #1 of 42 (Add to/Edit Set Members)
                          author
                            Rother
                              Near Rhyme Set #2 of 42 (Add to/Edit Set Members)
                              altar
                                alter
                                  falter
                                    halter
                                      psalter
                                        Balter
                                          Gibraltar
                                            Malter
                                              Salter
                                                Saulter
                                                  Walter
                                                    • leave at the altar
                                                    Near Rhyme Set #3 of 42 (Add to/Edit Set Members)

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                                                    Rhymes made up of more than one word. For instance, "jealous" and "tell us" or "shaky" and "make me."
                                                    • awe + her
                                                    • awe + were
                                                    • claw + her
                                                    • claw + were
                                                    • draw + her
                                                    • draw + per
                                                    • draw + were
                                                    • foresaw + her
                                                    • foresaw + were
                                                    • gnaw + her
                                                    • inlaw + were
                                                    • jaw + her
                                                    • jaw + were
                                                    • law + fer
                                                    • law + fur
                                                    • law + her
                                                    • law + per
                                                    • law + ter
                                                    • law + were
                                                    • McGraw + were
                                                    • paw + her
                                                    • paw + were
                                                    • saw + her
                                                    • saw + per
                                                    • saw + sir
                                                    • saw + were
                                                    • Shaw + were
                                                    • straw + per
                                                    • straw + were
                                                    • thaw + her
                                                    • Waugh + were
                                                    • withdraw + her
                                                    • withdraw + were
                                                    Mosaic Rhyme Set #1 of 1 (Add to/Edit Set Members)