1. (n.) One appointed as the substitute of another, and empowered to act for him, in his name or his behalf; a substitute in office; a lieutenant; a representative; a delegate; a vicegerent; as, the deputy of a prince, of a sheriff, of a township, etc.

2. (n.) A member of the Chamber of Deputies.

G-man MP acolyte adjutant administrator advocate agent aid aide aide-de-camp aider alternate alternative ambassador amicus curiae analogy appointee assignee assistant attendant attorney attorney-at-law auxiliary backup bailiff barrister barrister-at-law beadle beagle best man bound bailiff candidate captain catchpole change changeling chief of police coadjutant coadjutor coadjutress coadjutrix commissioner comparison conductor connection constable copy counsel counselor counselor-at-law counterfeit delegate deputy sheriff detective directeur director double dummy emissary envoy equal equivalent ersatz exchange executive officer factor fake fed federal fill-in flic friend at court front front man gendarme ghost ghostwriter go-between government man governor help helper helpmate helpmeet imitation impresario inspector intendant interagent interceder intercessor intermediary intermediate intermediate agent intermediator intermedium internuncio intervener interventionist interventor lawyer legal adviser legal counselor legal expert legal practitioner legalist legate licensee lictor lieutenant locum tenens mace-bearer makeshift manager marshal mediator medium metaphor metonymy middleman minister mounted policeman mouthpiece narc negotiant negotiator negotiatress negotiatrix next best thing nominee officer ombudsman operative paranymph paraprofessional patrolman peace officer personnel phony pinch hitter pleader police captain police commissioner police constable police inspector police matron police officer police sergeant policeman policewoman portreeve proctor procurator producer proxy rector reeve relief replacement representative reserve reserves responsible person ringer roundsman sea lawyer second second string secondary selectee self-styled lawyer sergeant sergeant at arms servant sheriff sideman sign solicitor spares spokesman spokesperson spokeswoman stand-in sub substituent substitute substitution succedaneum supercargo superintendent superseder supplanter supporting actor supporting instrumentalist surrogate symbol synecdoche third string tipstaff tipstaves token trooper understudy utility player vicar vice-president vice-regent