Definitions from Wiktionary ( )

▸ noun:  (chiefly in the plural, also figuratively) A companion; a comrade.
▸ noun:  (chiefly in the plural) An animal which is a member of a breed or species, or a flock, herd, etc.
▸ noun:  (chiefly in the plural) An object which is associated with another object; especially, as part of a set.
▸ noun:  (also attributively) A person or thing comparable in characteristics with another person or thing; especially, as belonging to the same class or group.
▸ noun:  (chiefly in the negative) A person with abilities, achievements, skills, etc., equal to those of another person; a thing with characteristics, worth, etc., equal to those of another thing.
▸ noun:  (chiefly in the plural) One in the same condition, or situation of need, as another.
▸ noun:  (archaic, chiefly in the plural)
▸ noun:  An equal in character, power, rank, etc.; a peer.
▸ noun:  A person living at the same time, or about the same age as another, especially when in the same field of study or work.
▸ noun:  Often in the form Fellow: academic senses.
▸ noun:  Originally, one of a group of academics who make up a college or similar educational institution; now, a senior member of a college or similar educational institution involved in teaching, research, and management of the institution.
▸ noun:  An honorary title bestowed by a college or university upon a distinguished person (often an alumna or alumnus).
▸ noun:  A (senior) member of a learned or professional society.
▸ noun:  (specifically, British, historical) A senior member of an Inn of Court.
▸ noun:  (chiefly British) 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.
▸ noun:  (Canada, US) A physician undergoing a fellowship (supervised subspecialty medical training) after having completed a residency (specialty training program).
▸ noun:  (US) A member of a college or university who manages its business interests.
▸ noun:  (US) A senior researcher or technician in a corporation, especially one engaged in research and development.
▸ noun:  (informal) 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.
▸ noun:  (rare) Usually qualified by an adjective or used in the plural: an individual or person regardless of gender.
▸ noun:  (by extension, often humorous or ironic) An animal or object.
▸ noun:  (archaic)
▸ noun:  One of a pair of things suited to each other or used together; a counterpart, a mate.
▸ noun:  Originally (obsolete), a person's partner (of either sex) in life or marriage; a spouse; also, the mate of an animal; now (dated), a person's male lover or partner; a boyfriend; a husband.
▸ noun:  (obsolete)
▸ noun:  A colleague or partner.
▸ noun:  (specifically, also figuratively) An associate in the commission of a crime or other wrongful act; an accomplice.
▸ noun:  A close companion or friend; also, a companion or friend whom one eats or drinks with.
▸ noun:  Followed by of: one who participates in an activity; a participant.
▸ noun:  A man without good breeding or of lower social status; a common or ignoble man; also, used as a polite term of address to such a person.
▸ noun:  A person's servant or slave.
▸ noun:  (derogatory) A worthless person; a churl, a knave; also, used as a term of address to a person regarded as such.
▸ noun:  (UK, slang) Synonym of schoolmate (“a student at the same school”)
▸ noun:  (chiefly Southern US, derogatory) A black man.
▸ verb:  (transitive)
▸ verb:  (archaic) To address (someone) as "fellow", especially in an insulting manner (see noun sense 10.6).
▸ verb:  (chiefly passive voice, poetic, archaic) To equal (someone or something); also, to cause or find someone or something to be equal to (some other person or thing).
▸ verb:  (obsolete)
▸ verb:  To pair or suit (someone or something) with some other person or thing; also, to pair or suit someone or something with (some other person or thing); to arrange (things) in pairs.
▸ verb:  (also reflexive) Followed by to or with: to associate or join (oneself, someone, or something) with some other person or thing in companionship or a partnership.
▸ verb:  (chiefly passive voice, sometimes reflexive) Followed by to or with: to cause or portray (someone or something) to be equal to some other person or thing.
▸ verb:  (poetic) To associate or go together with (someone or something); to become a partner of (someone or something).
▸ verb:  (intransitive, poetic, obsolete) Followed by with: to associate or join with a person or thing in companionship or a partnership.
▸ noun:  (Australian Aboriginal) Alternative form of fella (“used as a general intensifier”) [(Australian Aboriginal) Used as a general intensifier; a pfella.]

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