a player who makes a score in a game or contest
"The star scorer celebrated wildly after hitting the winning three-point shot at the buzzer."
a logger who marks trees to be felled
"The foreman pointed out the new scorer along the ridge, explaining that those marked oaks would be cut down next week."
an official who records the score during the progress of a game
"The scorer quickly updated the board after the referee signaled that the goal was valid."
One who scores.
"The soccer match ended early because the scorer was too distracted to keep accurate track of every goal."