One who offers advice.
A xiangqi piece, that is moved one point diagonally and confined within the palace.
A person who writes a letter of reference or provides a reference by phone call for someone. US English: reference.
A person who settles a dispute.
An expert who judges the manuscript of an article or book to decide if it should be published.
An umpire or judge; an official who makes sure the rules are followed during a game.
To act as a referee.