plural of fair weather friend

plural of partial false friend

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

(physics, philosophy) The hypothetical observer in a thought experiment in which Wigner, absent when his friend observes the state of a particle (in some versions, Schrödinger's cat) as it collapses from quantum superposition, concludes that both the particle and his friend remain in quantum superposition until Wigner himself learns the result of the observation.

(slang, dated, euphemistic) A homosexual man.

(UK) A designated friend or relative who collects medicine on behalf of a person with flu who has been advised to remain at home.

(slang) The situation in which one is viewed by a potential partner as a platonic friend, which complicates the initiation of a romantic relationship.

(slang, transitive) To classify as a friend, without any possibility of a romantic relationship.

A type of corkscrew having a folding design and including a small blade resembling a pocketknife

plural of friend-zone