A premonition is a strange feeling that something is coming, especially something bad, before you have a solid reason. It is not a plan and not a proof; it is a knowing that arrives early, in the body or the mind. People say it after a close scare, and stories love it. Some speakers use it loosely for any guess about the future; the tidier use keeps it for that odd, often dark, feeling. You can have a premonition of danger, of death, or of a phone call you do not want. It sounds a little like story-book English, but real people say it too — usually after the thing has already started to come true.