The crossword solutions for the term 'BUST Alternative' are 'BOOM' and 'FRAT'. BOOM is an onomatopoeia that is used to describe a loud sound, usually from an explosion or a large object hitting the ground. FRAT is an acronym for 'FRATERNITY', which is an organization of male students at a college or university. Both terms can be used as alternatives to 'BUST', which is a slang term meaning to fail or be unsuccessful.