Signified rhymes with:
dignified, dignified, magnified, bonafide, dignified, indemnified, magnified, personified, reunified, unified
Signified sounds like:
senft, sgambati, shampooed, sinbad, snapped, sniffed, sniped, snippet, snubbed, snuffed, somebody, succumbed, sunbath, sunbathe, swamped, sympathy