Non-

From Wikipedia, a free encyclopedia written in simple English for easy reading.

Non (with a dash "non-") is a prefix that comes before a subject. It means "not," negative, etc.. It does not mean the same as anti-.

Often an a- or an- as a prefix in a word, e.g. amoral, anarchy, implies the same as non-. This is not the same as the article a, which usually means just "one".