" Non " is a prefix indicating absence or negation, while "None" is a pronoun meaning not any or not one. Do you know how to use the words no and none correctly in English conversation? How about the prefix non ~? Read this post, watch the videos, and soon you will be using these words like a native spe… Non prefix meaning The “ non -” prefix is used to negate or indicate the absence of something. The prefix “ Non ” means not or without. Non Prefix Words List Here are a few commonly used words which have prefix non . The meanings of the words are also given for the convenience of students. Non - is a prefix that indicates negation, refusal, exclusion, or lack in many words. Learn how to use it in English and other languages, such as Spanish, German, and Arabic, with examples and translations.