marker (EN)

noun

noun “marker”

1. a pen with a thick felt tip, used for writing or drawing
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   She drew a poster using colorful markers.
2. an object used to indicate a position, place, or boundary
   They placed markers along the path to guide the hikers.
3. a sign or measure that indicates a particular condition or level
   The GDP is a common marker of a country's economic health.
4. (biology) a gene or substance used to identify a biological state
   The researchers used a genetic marker to track the spread of the disease.
5. (linguistics) a word or morpheme that indicates a grammatical function
   In the word "talked," the "-ed" is a past tense marker.
6. (UK) someone who assigns marks to tests or exams; a grader
   The markers are working hard to grade all the exam papers before the deadline.
7. (sports) a player who guards a particular opponent to prevent them from playing well
   The defender acted as the marker for the opponent's star throughout the game.