Marker

English Meaning

One who or that which marks.

1. One that marks or serves as a mark, as:
2. A bookmark.
3. A tombstone.
4. A milestone.
5. An implement, especially a felt-tipped pen, used for marking or writing.
6. One who marks objects, especially for industrial purposes.
7. One who grades student papers.
8. Sports A device, such as a line, stake, or flag, set on a playing field and showing the playing or scoring position.
9. Sports A player who guards an opponent, as in soccer.
10. Sports An official in certain court games, such as squash, who mainly judges whether the ball is out of play and whether a fault or let has occurred.
11. Games One that keeps score in various games.
12. Games A score in a game.
13. Slang A written, signed promissory note.
14. A genetic marker.
15. Medicine A physiological substance, such as human chorionic gonadotropin or alpha-fetoprotein, that when present in abnormal amounts in the serum may indicate the presence of disease, as that caused by a malignancy. Also called biomarker.
16. Linguistics An element that indicates grammatical class or function; a derivational or inflectional morpheme.