A friend with whom one communicates via the Internet.

plural of e-friend

Dated form of boyfriend.

A person who is an especially close and trusted friend over a long period of time.

(linguistics, uncommon) A word in a language bearing a deceptive resemblance to a word in another language, and at least one meaning in common, but not all.

bacterial pneumonia.

plural of friend of Bill W. / (informal) The organization Alcoholics Anonymous.

(idiomatic, euphemistic) A recovering alcoholic, especially one who is a member of the organization Alcoholics Anonymous.

(law, Australia, Britain, Hong Kong, New Zealand, Canada) A barrister on the opposing side of a dispute; a member of opposing counsel.

Participants in a two-way relationship that is closer than a typical friendship, especially a romantic or marital relationship.