The term 'Bar Subject' refers to a field of study that is required for admission to the bar in many states. The two crossword solutions for this term are LAW (3 letters) and TAXLAW (6 letters). LAW is an abbreviation for the legal field, which encompasses a wide range of topics such as civil LAW, criminal LAW, constitutional LAW, and international LAW. TAXLAW is a specific area of LAW that deals with taxation and related issues.