Rusher (noun)

1. A person who rushes, such as someone who rushes to complete a task.
2. A person who rushes forward, as in a physical rush or an emotional rush.
3. A player in American football who is assigned the task of rushing the quarterback.

Origin:

Late 19th century, from rush (verb) + -er.

Examples:

1. The rusher was in a hurry to finish the project.
2. The crowd was filled with shoppers and holiday rush.
3. He was one of the best rushers in the league.
4. The rusher was able to break through the offensive line.
5. The rusher was able to get to the quarterback before he could throw the ball.