stand-in Synonyms

substitute sub be a proxy sit in fill-in backup man alter ego standby backup consist in understudy switch surrogate locum designated hitter pinch hitter act as stand-in act as locum act as deputy act as a substitute substitute batter take over from supercede stunt double hold the fort stopgap deputise put back support supply supplant double displace deputy deputize delegate cover changeling change attorney alternative alternate equivalent exchange extra supersede succeed stand ringer represent