friend

1 a person who has a strong liking for and trust in another really close friends who like to do everything together and are always sharing secrets Synonyms alter ego, amigo, buddy, chum, compadre, comrade, confidant, confidante, crony, familiar, intimate, mate [chiefly British], musketeer, pal Related Words acquaintance; associate, cohort, colleague, companion, fellow, hearty, hobnobber, partner, peer, sport; blood brother, brother, main man, sister; abettor (also abetter), accomplice, ally, collaborator, confederate; pen pal; benefactor, supporter, sympathizer, well-wisher; friendly Near Antonyms adversary, antagonist, competitor, opponent, rival; archenemy, nemesis Antonyms enemy, foe

2 a person who actively supports or favors a cause hopes that the new governor will be a friend to environmental causes Synonyms advocate, advocator, apostle, backer, booster, champion, expounder, espouser, exponent, gospeler (or gospeller), herald, hierophant, high priest, paladin, promoter, proponent, protagonist, supporter, true believer, tub-thumper, white knightRelated Words loyalist, partisan (also partizan), stalwart; adherent, cohort, disciple, follower; interpreter; applauder, cheerleader, encourager, fellow travelerNear Antonyms enemy, foe, rival; belittler, critic, faultfinderAntonyms adversary, antagonist, opponent