Synonyms of 'big gun'

baron, bigwig, big cheese, big name, big noise, big shot, brass, brass hat, celebrity, chief, dignitary, dignity, elder, father, figure, high-muck-a-muck, leader, lion, magnate, mogul, nabob, name, notability, notable, panjandrum, personage, personality, power, sachem, somebody, something, tycoon, worthy