Waterworld rhymes with:
computerworld, computerworld, netherworld, underworld, computerworld, dreamworld, eworld, infoworld, macworld, netherworld, sunworld, underworld, westworld
Waterworld sounds like:
weatherholt, wiederhold, wiederholt
computerworld, computerworld, netherworld, underworld, computerworld, dreamworld, eworld, infoworld, macworld, netherworld, sunworld, underworld, westworld
weatherholt, wiederhold, wiederholt