noun
Someone or something that creates marks, particularly
Someone or something used to mark a position or amount, particularly
(UK) Someone who assigns marks on tests, examinations, etc.; a grader.
(uncountable, colloquial) The ink marks or residue of a felt-tipped pen.
(figurative) A personal favor owed to someone, whether written or not.
(competition law) A formal certification that a company was the first to approach a competition authority to reveal the existence of a cartel, generally entitling it to greater leniency during the cartel's dissolution and punishment.
(sports) A player on defense used to mark one or more offensive players.
(dated) A player employed by a private club to compete against members.
(Philippines, informal, basketball, volleyball) A point, unit of scoring in a game or competition.
verb
To mark or write on (something) using a marker