marker

/ˈmɑrkər/
noun
  1. A pen with a thick tip used for writing or drawing, especially on large surfaces or to make bold lines.
    • The teacher wrote the lesson on the whiteboard with a blue marker.
    • She used a red marker to highlight the important dates on the calendar.
    • I need a permanent marker to label these boxes for storage.
  2. An object or sign that shows the location or existence of something.
    • A stone marker stands at the entrance of the old cemetery.
    • GPS markers help hikers find their way in remote areas.
    • The trail was easy to follow thanks to the yellow markers on the trees.
  3. A characteristic or feature that indicates something (e.g., a biological or social indicator).
    • The use of slang can be a marker of belonging to a particular social group.
    • High blood pressure is a marker for heart disease.
    • In genetics, certain markers can predict the likelihood of inherited conditions.
  4. In sports, a player who guards or covers an opponent.
    • He lost his marker and scored an easy goal.
    • The coach assigned a specific marker to each opposing player.
    • The defender stayed close as a marker on the star striker.
What does "marker" mean? | whatsthatwordmean | whatsthatwordmean