rover

Short definition from Wiktionary

Noun

1. 1
   A randomly selected target.
2. 2
   One who roves, a wanderer, a nomad.
3. 3
   A vagabond, a tramp, an unsteady, restless person, one who by habit doesn't settle down or marry.
4. 4
   A vehicle for exploring extraterrestrial bodies.
5. 5
   A remotely-operated vehicle.
6. 6
   A position that is one of three of a team's followers, who follow the ball around the ground. Formerly a position for short players, rovers in professional leagues are frequently over 183 cm (6').
7. 7
   A defensive back position whose coverage responsibilities are a hybrid of those of a cornerback, safety and linebacker.
8. 8
   A ball which has passed through all the hoops and would go out if it hit the stake but is continued in play; also, the player of such a ball.
9. 9
   The tenth defensive player in slow-pitch softball.
10. 10
    A sort of arrow.
11. 11
    A pirate.
12. 12
    A pirate ship.
13. 13
    Someone connected with any number of teams called the Rovers, as a fan, player, coach etc.
14. 14
    Someone connected with any number of teams called the Rovers, as a fan, player, coach etc: someone connected with Blackburn Rovers FC, as a fan, player, coach etc.
15. 15
    A member of the senior section of the Boy Scout movement catering for men of age 18 upwards, now disbanded.

Proper noun

1. 1
   A stereotypical given name for a dog.
2. 2
   A former make of a British motorcar.