It typically refers to the commercial aspect of activities that involve trade, services, or any economic exchanges. Words, phrases and expressions | business How to use biz in a sentence.
As nouns the difference between business and biz is that business is (countable) a specific commercial enterprise or establishment while biz is (slang) business. Biz in the business topic by longman dictionary of contemporary english | ldoce | what you need to know about business: Idiom be the biz (definition of biz from the cambridge advanced learner's dictionary & thesaurus © cambridge university press)
See examples of biz used in a sentence. Biz is sometimes used to refer to the entertainment business, especially pop music or films. The meaning of biz is business.