A scorekeeper is a person who keeps track of the score in a game or a competition.
A scorekeeper is important for making sure everyone knows who is winning and who is losing.
Examples:
The scorekeeper writes down the points for each team.
I want to be the scorekeeper for our game.
The scorekeeper uses a pen and paper to keep track of the score.
The scorekeeper made a mistake and gave the wrong team a point!
The scorekeeper has a big book to write down all the points.
The scorekeeper wears a special hat and has a big smile.