marker.

Someone or something that creates marks, particularly A felt-tipped pen, a marker pen.

Don't use the permanent marker on the whiteboard.

Someone or something that creates marks, particularly A scorekeeper, especially one who tallies billiard scores.

Someone or something that creates marks, particularly A device that fires a paintball.

Someone or something used to mark a position or amount, particularly

Someone or something used to mark a position or amount, particularly A real or virtual objective, something to be aimed for.

Someone or something used to mark a position or amount, particularly A location on a stage or set where an actor is to stand or move to during a scene, usually indicated by a small X design placed on the floor.

Someone or something used to mark a position or amount, particularly A location on a stage or set where an actor is to stand or move to during a scene, usually indicated by a small X design placed on the floor. A direction issued by a camera operator for actors to be on their locations in readiness for a take.

Someone or something used to mark a position or amount, particularly Synonym of IOU, an informal record of a debt.

Someone or something used to mark a position or amount, particularly A free or bound morpheme indicating a grammatical function.

Someone or something used to mark a position or amount, particularly Ellipsis of discourse marker.

Someone or something used to mark a position or amount, particularly A gene or DNA sequence with a known location on a chromosome that can be used to identify individuals or species.

Someone or something used to mark a position or amount, particularly A substance used as an indicator for diagnosis or other analysis, a biomarker.

Someone or something used to mark a position or amount, particularly The soldier who forms the pilot of a wheeling column or marks the direction of an alignment.

Someone or something used to mark a position or amount, particularly A sewing machine attachment that creases the fabric to mark a line

Someone or something used to mark a position or amount, particularly A counter, especially one used in card games or backgammon.

Someone or something used to mark a position or amount, particularly Any of various objects that mark a place on the landscape, such as a milepost, blaze, or surveyor's cairn.

Someone who assigns marks on tests, examinations, etc.; a grader.

The ink marks or residue of a felt-tipped pen.

Susie got marker all over the walls.

A personal favor owed to someone, whether written or not.

We may not be able to do this alone. Maybe it’s time to call in some of our markers.

A formal certification that a company was the first to approach a competition authority to reveal the existence of a cartel, generally entitling it to greater leniency during the cartel's dissolution and punishment.

A player on defense used to mark one or more offensive players.

A player employed by a private club to compete against members.

A point, unit of scoring in a game or competition.

To mark or write on (something) using a marker