BREAK A LAW is an expression used to describe the act of committing a crime or disobeying a law. The crossword solutions for this term are SIN (3 letters) and VIOLATE (7 letters). SIN is defined as an immoral act considered to be a transgression against divine law, while VIOLATE means to break or disregard a law, agreement, or code of conduct. Therefore, BREAK A LAW is an expression used to describe the act of committing a SIN or violating a law.