Knowledge in advance enables one to be prepared, as in Let me know when he's in town so I can take the phone off the hook-forewarned is forearmed. This expression originated as a Latin proverb, Praemonitus, praemunitus, which was translated into English by the early 1500s.

Is there a saying Forewarned is forearmed?

If you say 'Forewarned is forearmed,' you are saying that if you know about a problem or situation in advance, you will be able to deal with it when you need to.

What Forewarned is forearmed mean?

phrase. DEFINITIONS1. used for saying that if you know about a problem before it happens, you can prepare for it.