Returnee rhymes with:
internee, gurnee, internee, dauphinee, designee, detainee, guarani, gurnee, internee, janii, knee, mallonee, mcnee, ne, nee, ni, nie, nominee, pawnee, ranee, resignee, schnee, snee, swanee, trainee
Returnee sounds like:
ratterman, readerman, redrawn, retrain, return, ruderman