fellow

noun

1. A companion; a comrade.
2. An animal which is a member of a breed or species, or a flock, herd, etc.
3. An object which is associated with another object; especially, as part of a set.
4. One comparable in characteristics with another; especially, as belonging to the same class or group.
5. One with abilities, achievements, skills, etc., equal to those of another; a thing with characteristics, worth, etc., equal to those of another thing.
6. One in the same condition, or situation of need, as another.
7. An equal in character, power, rank, etc.; a peer.
8. One living at the same time, or about the same age as another, especially when in the same field of study or work.
9. An academic who constitutes an educational institution (such as a college or university); now particularly, a senior member involved in teaching, research, and management of the institution.
10. A (senior) member of a learned or professional society.
11. A senior member of an Inn of Court.
12. An honorary title bestowed by an educational instutition upon a distinguished person (often an alumna or alumnus).
13. A scholar appointed to a fellowship, that is, a paid academic position held for a certain period which usually requires the scholar to conduct research.
14. A physician undergoing a fellowship (supervised subspecialty medical training) after having completed a residency (specialty training program).
15. A member of a college or university who manages its business interests.
16. A senior researcher or technician in a corporation, especially one engaged in research and development.
17. A male person; a bloke, a chap, a guy, a man; also, preceded by a modifying word, sometimes with a sense of mild reproach: used as a familiar term of address to a man.
18. An individual regardless of gender; usually qualified by an adjective or used in the plural.
19. An animal or object.
20. One of a pair of things suited to each other or used together; a counterpart, a mate.