chap, fellow, feller, fella, lad, gent, blighter, cuss, bloke (noun)

a boy or man

"that chap is your host"; "there's a fellow at the door"; "he's a likable cuss"; "he's a good bloke"

companion, comrade, fellow, familiar, associate (noun)

a friend who is frequently in the company of another

"drinking companions"; "comrades in arms"

colleague, confrere, fellow (noun)

a person who is member of one's class or profession

"the surgeon consulted his colleagues"; "he sent e-mail to his fellow hackers"

mate, fellow (noun)

one of a pair

"he lost the mate to his shoe"; "one eye was blue but its fellow was brown"

fellow (noun)

a member of a learned society

"he was elected a fellow of the American Physiological Association"

fellow, dude, buster (noun)

an informal form of address for a man

"Say, fellow, what are you doing?"; "Hey buster, what's up?"

boyfriend, fellow, beau, swain, young man (noun)

a man who is the lover of a girl or young woman

"if I'd known he was her boyfriend I wouldn't have asked"

fellow (Noun)

A colleague or partner.

fellow (Noun)

A companion; a comrade.

fellow (Noun)

A man without good breeding or worth; an ignoble or mean man.

fellow (Noun)

An equal in power, rank, character, etc.

fellow (Noun)

One of a pair, or of two things used together or suited to each other; a mate.

fellow (Noun)

A male person; a man.

fellow (Noun)

In the English universities, a scholar who is appointed to a foundation called a fellowship, which gives a title to certain perquisites and privileges.

fellow (Noun)

In an American college or university, a member of the corporation which manages its business interests; also, a graduate appointed to a fellowship, who receives the income of the foundation.

fellow (Noun)

A member of a literary or scientific society; as, a Fellow of the Royal Society.

fellow (Verb)

To suit with; to pair with; to match.

fellow (Noun)

The most senior rank or title one can achieve on a technical career in certain companies (though some fellows also hold business titles such as vice president or chief technology officer). This is typically found in large corporations in research and development-intensive industries (IBM or Sun Microsystems in information technology, and Boston Scientific in Medical Devices for example). They appoint a small number of senior scientists and engineers as Fellows.

fellow (Noun)

In the US and Canada, a physician who is undergoing a supervised, sub-specialty medical training (fellowship) after completing a specialty training program (residency).

fellow (Adjective)

Having common characteristics; being of the same kind, or in the same group

Fellow

In academia, a fellow is a member of a group of learned people who work together as peers in the pursuit of mutual knowledge or practice. The fellows may include visiting professors, postdoctoral researchers and doctoral researchers.