Definition of non- in English:


Syllabification: non-
Pronunciation: /nän


1Not doing; not involved with: nonaggression nonrecognition
2.1Also forming nouns used attributively (such as nonunion in nonunion miners).
5(Added to adverbs): Not in the way described: nonuniformly
6(Added to verbs to form adjectives) not causing or requiring: nonskid noniron
7Expressing a neutral negative sense when a corresponding form beginning with in- or un- has a special connotation (such as nonhuman compared with inhuman).


from Latin non 'not'.


The prefixes non- and un- both have the meaning ‘not,’ but tend to be used with a difference of emphasis. See un-1 (usage).

Definition of non- in:

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Word of the day noisome
Pronunciation: ˈnɔɪs(ə)m
having an extremely offensive smell