Other Uses
- Historical marker, a plaque erected at historically significant locations
- Marker pen, a felt-tipped pen used for drawing and/or coloring
- Paintball marker or paintball gun, an air gun
- Surface marker buoy, to mark a diver's position while underwater
- Marker beacon, a beacon used in aviation
- Casino marker, line of credit extended by a casino or cardroom
- Watch marker, up to twelve of which delineate the hours around a dial
- Clapperboard, equipment used during filming
- Taggant, a chemical or physical marker added to materials
- MARKER®, a registered name for investment products in Benelux
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