(espionage) An announcement of dismissal of an agent or source an intelligence agency considers to have become unreliable.

plural of D-notice

occurring before a notice is issued

(idiomatic) Immediately; instantaneously; without need of warning.

A board, hanging on a wall, on which notices and announcements are posted. / (Internet) An online forum where users can post and read messages.

(intransitive, often with of) To notice; to take note.

Used other than figuratively or idiomatically: see give, notice. / (idiomatic) To announce one's intent to leave a job; to inform an employer that one is leaving.

(idiomatic, transitive) To ignore.

plural of notice board

(law) A warning endorsed on a court order, notifying the recipient that he or she is liable to committal to prison for breach of the order.