an object used to indicate a position, place, or route

they erected a granite marker at the crash site

a felt-tip pen with a broad tip

a heavy line drawn by a marker

(in team games) a player who stays close to an opponent to prevent them from getting or passing the ball

Quinn took the ball wide of his marker

a person who assesses the standard of a test or examination

the aim of the marker is to help the student do better next time

a promissory note; an IOU

we'll give you a marker, you give us the car