Gwyneths rhymes with:
gwyneth's, gwyneth's, gwyneth's, gwyneth's, behemoths, dartmouth's, elizabeth's, gwyneth's, mammoths, monmouth's, plymouth's, sabbaths
Gwyneths sounds like:
gamunde's, gandhi's, gannett's, gantos, gantz, genentech, genentech's, genetic, genetics, gent's, gentz, giaconda's, giannattasio, giant's, giants, giants', gigantic, gintz, gnats, gonads, gondek, guandjo, guandjo's, gundog, gwyneth's