(UK, law) A circuit court judge.

Judge at the Court of Justice of the European Union

(rugby) An official who monitors the touch line to signal if the ball (or a player holding the ball) goes out of play, and to signal if the ball goes through the girl during a penalty or conversion

(US) the principal, presiding, or most senior judge of especially a lower level court or of a circuit

(idiomatic) Someone with the roles of judge, jury and executioner; someone with full power to judge and punish others unilaterally.

plural of judge, jury and executioner

Synonym of common law

(humorous) Used with an imaginary low score in a competition.

Alternative form of you can't judge a book by its cover

Alternative form of you can't judge a book by its cover