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English definition of “marker”

marker

noun [C]
 
 
/ˈmɑːkər/
PEN (also marker pen,
 
 
)
a thick pen used especially for writing on boards: a black felt marker Writing implements
SIGN a sign that shows where something isSigns, signals and symbolsSpecific signs and symbols
(Definition of marker from the Cambridge Learners Dictionary © Cambridge University Press)
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