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[U] information or a warning given about something that is going to happen in the futureThe next time you visit, can you give me more notice?
The emergency services are ready to spring into action at a moment's notice.
The building is closed until further notice (= until another official announcement is made).
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[U] a letter or statement from an employer or from an employee saying that they will leave their job after a particular period of time, or this period of timeDo I have to work out my notice?
give sb notice to ask someone who works for you to leave their job, usually after a particular period of timeMy boss gave me a month's notice.
hand/give in your notice to tell your employer that you intend to leave your job after a particular period of timeI handed in my notice yesterday.