surrogate Synonyms

foster vicarial understudy surrogation supplanter supersession superinduce successor succedaneum substitutionary substitutional substitution substitute substituent sub stand-by secondary alternates vicarious vicegerent substitutes ersatz stopgap second-in-command relace pinch hitter understudied locum stand-in fill-in placeholder father figure mother figure standby backup second reserve emissary double deputy deputies delegate consul changeling change attorney assignee appointee ambassador alternative