(UK, Australia, New Zealand, Canada) Any of a variety of devices that rely on magnetic slip rings to drive a transmitter and receiver that rotate in unison.

The date before which a document must have been written. / The date before which an archaeological artifact must have been deposited.

(in Russia) A committee or council / (in Ancient Rome) Any of several legal associations

(US, Mafia, slang) A personal friend of the speaker/writer who is not a member of the Mafia.