Read the dictionary definition of fellow. All definitions for this word.
1. a man who is the lover of a man or woman
1. if I'd known he was her boyfriend I wouldn't have asked
2. When the law changed, Pet could finally married his long-time boyfriend Jim
2. a boy or man
1. that chap is your host
2. there's a fellow at the door
3. he's a likable cuss
4. he's a good bloke
3. a person who is member of one's class or profession
1. the surgeon consulted his colleagues
2. he sent e-mail to his fellow hackers
4. a friend who is frequently in the company of another
1. drinking companions
2. comrades in arms
5. an informal form of address for a man
1. Say, fellow, what are you doing?
2. Hey buster, what's up?
6. a member of a learned society
1. he was elected a fellow of the American Physiological Association
7. one of a pair
1. he lost the mate to his shoe
2. one eye was blue but its fellow was brown
