marker
1. (=indicator) (generally, biology) marcador (m) (in field) jalónoun (m)
(=signpost) poste (m) indicador
·to put down a marker
(figurative) dejar una señal, marcar un lugar
2. also marker pen rotulador (m)
3. (=bookmark)   marca (f), señal (f)
4. (football)
(=person)   marcador (m) / marcadoa (f), secante masculine and feminine
5. (school)
(=person) examinador (m) / examinadoa (f)
6. (Billiards etcetera) marcador (m) (in other games) ficha (f)
7. (computing) bandera (f)