Treason rhymes with:
dresen, frieson, reason, arnesen, beason, beeson, deason, dresen, eason, frieson, gleeson, mathieson, midseason, reason, salvesen, season
Treason sounds like:
tarquinio, tarzan, terracciano, terrorism, terzian, thoresen, thoreson, thorsen, thorson, threesome, tiresome, torgeson, torosian, torrejon, torsion, tourigny, tourism, trajan, trism, trochmann, trojan, truchan, truism, turchin, turchyn, turgeon, turismo, turkmen