A Sweeper

1. One who sweeps floors or chimneys.
2. A detector (for mines).
3. Any of the small, tropical marine perciform fishes of the family Pempheridae, typically with deeply keeled, compressed bodies and large eyes.
4. (soccer) A defender who is the last line of defence before the goalkeeper.
5. (curling) A person who sweeps the ice ahead of the rock in play.
6. (cricket) A batsman who plays sweep shots.
7. (cricket) A fielding position along the boundary; a fielder in this position.
8. A tree that has fallen over a river with branches extending into the water.
9. A carpet sweeper.
10. (US, regional, including Ohio and Indiana) A vacuum cleaner.
11. (regional, including Cebu) A group of students tasked at cleaning the homeroom after class dismissal.