A business big shot is someone who has achieved a high level of success in the business world. The term can refer to a TYCOON, MOGUL, TITAN, or EXEC. A TYCOON is a wealthy and powerful businessperson, often with extensive investments and holdings. A MOGUL is a powerful person in the business world, usually with a great deal of influence and wealth. A TITAN is a powerful and influential figure in a particular industry or field. An EXEC is a senior executive in a company, typically with a high level of responsibility and authority.