buff

1 a person with a strong and habitual liking for something he's such a film buff that he owns over 3,000 movies Synonyms addict, aficionado (also afficionado), fan, bug, devotee, enthusiast, fanatic, fancier, fiend, fool, freak, habitué (also habitue), head, hound, junkie (also junky), lover, maniac, maven (also mavin), nut, suckerRelated Words groupie; admirer, amateur, collector, connoisseur, dilettante; authority, expert; adherent, convert, cultist, disciple, follower, hanger-on, votary; advocate, apostle, backer, champion, evangelist, exponent, friend, patron, promoter, proponent, supporter; partisan (also partizan), zealot; booster, rooter, well-wisher; faddistNear Antonyms nonadmirer; belittler, carper, critic, detractorAntonyms nonfan

2 the state of having no clothes on one's body protected by a fully enclosed backyard, the couple would frequently sunbathe in the buff Synonyms altogether, bareness, birthday suit, bottomlessness, nudity, nakedness, nude, rawRelated Words toplessness; naturism, nudism