Panther's rhymes with:
panthers, panthers', panthers, panthers', panthers, panthers', arthur's, arthurs, author's, authors, authors', coauthors, crowther's, crowthers, ethers, fathers', mothers', panthers, panthers', walthers
Panther's sounds like:
painter's, painters, pandora's, pantera's, panthers, panthers', penders, pepenadores, pindaric, pointers, ponderosa, ponderosa's, ponderous, ponders, pounders