bar — as in: passed the bar examination
She just graduated from law school and now needs to take the bar examination.
any of the state tests a person needs to pass to practice law in that state
the association of people qualified to practice law in a particular place
Bar is also used as an abbreviated way of saying bar examination; i.e., the test people must pass to practice law in a state.
Much more rarely, the legal profession uses the term "bar" in another sense as well; i.e., to refer to a partition (perhaps literally a bar railing) that encloses the part of the courtroom where the judges and lawyers sit and the case is tried.