A Scout

1. A person sent out to gain and bring in tidings; especially, one employed in war to gain information about the enemy and ground. Synonyms: (obsolete) espial, (obsolete) espy
2. An act of scouting or reconnoitering.
3. A member of any number of youth organizations belonging to the international scout movement, such as the Boy Scouts of America or Girl Scouts of the United States.
4. A person who assesses or recruits others; especially, one who identifies promising talent on behalf of a sports team.
5. A person employed to monitor rivals' activities in the petroleum industry.
6. (Oxford University, modern) A housekeeper or domestic cleaner, generally female, employed by one of the constituent colleges of Oxford University to clean rooms; generally equivalent to a modern bedder at Cambridge University.
7. (Oxford University, Harvard University, Yale University, historical) A domestic servant, generally male, who would attend (usually several) students in a variety of ways, including cleaning; generally equivalent to a gyp at Cambridge University or a skip at Trinity College, Dublin.
8. (UK, cricket) A fielder in a game for practice.
9. (historical, UK, up until 1920s) A fighter aircraft.
10. (radiography) A preliminary image that allows the technician to make adjustments before the actual diagnostic images.
11. (informal) A term of address for a man or boy.