Renison rhymes with:
bennison, denison, dennison, jenison, jennison, kenison, kennison, tennison, tennyson, arneson, bennison, denison, dennison, gunnison, jenison, jennison, johannesen, johannessen, kenison, kennison, kinnison, tennison, tennyson, tunison, vanessen
Renison sounds like:
ramaswami, rangoon, rankin, rankine, ransom, ransome, ranson, ransone, remission, remsen, remson, rencen, renken, rimson, rincon, ringeisen, ringen, ronson, rumson