"Know business" refers to having knowledge, expertise, or familiarity with a certain field or industry. There are many synonyms for this phrase, including "business savvy," "industry knowledge," "professional experience," "market intelligence," and "commercial awareness." These terms all describe an individual's ability to understand and navigate the complexities of a particular business or industry. Whether it's finance, marketing, or technology, having a deep understanding of the specific challenges and opportunities within a field can be a valuable asset in any career. By staying informed and continuously learning, individuals can develop their know business skills to become successful in their chosen profession.