The three-letter word "BAF" has a few potential synonyms depending on context. In the realm of finance, "BAF" could refer to "bankers' acceptance facility," which is a type of short-term financing. In this case, some synonyms might be financial support, funding, or financing. In a more casual context, "BAF" could stand for "bad as f*ck," in which case some potential synonyms might be cool, impressive, or awesome. Finally, "BAF" could also refer to "body armor fragmentation," which would likely be used in a military or law enforcement context. Synonyms for this could be tactical armor, protective gear, or bulletproof vest.