How to sign: a person who backs a politician or a team etc.
"all their supporters came out for the game"; "they are friends of the library";
Similiar / Same: supporter, protagonist, booster, champion, friend
Categories: advocate, advocator, exponent, proponent
Within this category: anglophile, believer, Boswell, cheerleader, Confederate, enthusiast, Francophile, free trader, functionalist, Jacobite, loyalist, New Dealer, philhellene, pillar, Roundhead, seconder, Shavian, subscriber, sympathizer, toaster, upholder, voucher, Whig