The meaning of biz is business. How to use biz in a sentence. Britannica dictionary definition of biz [singular] informal :
From longman dictionary of contemporary english related topics: American heritage® dictionary of the english language, fifth edition. In modern usage, 'biz' is commonly employed in casual conversations,.
It typically refers to the commercial aspect of activities that involve trade, services, or any economic exchanges. Idiom be the biz (definition of biz from the cambridge advanced learner's dictionary & thesaurus © cambridge university press) Business the music biz she left the farm for a career in show biz. Biz is sometimes used to refer to the entertainment business, especially pop music or films.
Theatre, business biz /bɪz/ noun [singular] informal a particular type of business, especially one relating to entertainment.