Hardens rhymes with:
harden's, arden's, darden's, garden's, gardens, harden's, pardons, arden's, borden's, chernomyrdin's, cherumirdan's, darden's, garden's, gardens, gordon's, harden's, jordan's, jordans, pardons, riordan's, warden's, wardens, wardens'
Hardens sounds like:
harden's, hardening, harding, harding's, hardness, harting, hartness, hartong, hartung, heartening, herding, herting, hoarding, hurting