Atlantis' rhymes with:
atlantis, atlantis, atlantis, duplantis, atlantis, duplantis, mantis, yantis, atlantis, delaurentis, desantis, devincentis, disantis, duplantis, intis, lantis, mantis, prentice, prentiss, yantis
Atlantis' sounds like:
atlanta's, atlantic, atlantic's, atlantica, atlantico, atlantis, atlantis's