marker:
(plural: ‘markers‘; for the right pronunciation, please click here)
a person who writes down points in a game to show the score to the spectators;
a person (a groundsman) whose job is to make marks or lines on the ground where some game is played or an activity is done,
an employee/worker who makes some kind of mark or writes down the name or sign on the packages of goods made in a factory;
a player, in such games as football/soccer, who guards a player from the other side;
a teacher or any other official of an educational institute, usually a high school, who gives grades to the students,
The spectators got mad at the marker for making several mistakes on the score board.
It’s the duty of the tennis court line marker to see that all the lines on the court are well marked before a match begins.
The factory employs three markers to mark and label their finished products before they are packed and sent to the retailers.
The school board dismissed two markers who had marked the assessments so carelessly that the intelligent students got fewer marks than the dull students!



