Sweeper (noun)

1. A person whose job is to sweep floors or streets.
2. A cleaning machine used to sweep floors, carpets, etc.
3. A defensive player whose role is to prevent opponents from getting past the defense.

Origin:

The word sweeper comes from the old english word sweopere, which means "one who sweeps", it has been used in the english language since the 16th century.

Examples:

1. The street sweeper was out early in the morning sweeping the streets.
2. The janitor used the sweeper to clean the floor.
3. The soccer team's sweeper was the last line of defense on the field.
4. The robot sweeper can clean the floor without human intervention.
5. The broom sweeper is a traditional tool for cleaning floors.