Noun

• S: (n) subscriber, endorser, indorser, ratifier (someone who expresses strong approval)
• direct hypernym / inherited hypernym / sister term
• S: (n) supporter, protagonist, champion, admirer, booster, friend (a person who backs a politician or a team etc.) "all their supporters came out for the game"; "they are friends of the library"
• S: (n) anglophile, anglophil (an admirer of England and things English)
• S: (n) believer, truster (a supporter who accepts something as true)
• S: (n) Boswell (a devoted admirer and recorder of another's words and deeds)
• S: (n) cheerleader (an enthusiastic and vocal supporter) "he has become a cheerleader for therapeutic cloning"
• S: (n) Confederate (a supporter of the Confederate States of America)
• S: (n) corporatist (a supporter of corporatism)
• S: (n) enthusiast, partisan, partizan (an ardent and enthusiastic supporter of some person or activity)
• S: (n) Francophile, Francophil (an admirer of France and everything French)
• S: (n) free trader (an advocate of unrestricted international trade)
• S: (n) functionalist (an adherent of functionalism)
• S: (n) Jacobite (a supporter of James II after he was overthrown or a supporter of the Stuarts)
• S: (n) loyalist, stalwart (a person who is loyal to their allegiance (especially in times of revolt))
• S: (n) New Dealer (a supporter of the economic policies in the United States known as the New Deal)
• S: (n) philhellene, philhellenist, Graecophile (an admirer of Greece and everything Greek)
• S: (n) pillar, mainstay (a prominent supporter) "he is a pillar of the community"
• S: (n) Roundhead (a supporter of parliament and Oliver Cromwell during the English Civil War)
• S: (n) seconder (someone who endorses a motion or petition as a necessary preliminary to a discussion or vote)
• S: (n) Shavian (an admirer of G. B. Shaw or his works)
• S: (n) subscriber, endorser, indorser, ratifier (someone who expresses strong approval)
• S: (n) sympathizer, sympathiser, well-wisher (someone who shares your feelings or opinions and hopes that you will be successful)
• S: (n) toaster, wassailer (someone who proposes a toast; someone who drinks to the health of success of someone or some venture)
• S: (n) upholder, maintainer, sustainer (someone who upholds or maintains) "firm upholders of tradition"; "they are sustainers of the idea of democracy"
• S: (n) voucher, verifier (someone who vouches for another or for the correctness of a statement)
• S: (n) Whig (a supporter of the American Revolution)
• derivationally related form
• S: (n) endorser, indorser (a person who transfers his ownership interest in something by signing a check or negotiable security)