plural of old friend

(colloquial) a female friend.

plural of bosom friend

(law) A person who represents another person who is under disability or otherwise unable to maintain a suit on their own behalf, and who does not have a legal guardian.

plural of next friend

(law) One who assists a litigant in person in a common law court, whether legally qualified or not.

plural of McKenzie friend

(idiomatic, humorous) Indicates that a question is embarrassing by pretending to be asking on behalf of another person.

plural of best friend

(often in the plural) Any of a group of friends who are often in each other’s company, and appear to be inseparable