Definition of non- in English:

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non-

Pronunciation: /nän/

prefix

1Not doing; not involved with: nonaggression nonrecognition
2Not of the kind or class described: nonbeliever nonconformist
3Not of the importance implied: nonissue
4A lack of: nonsense
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).

Usage

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

Origin

From Latin non 'not'.

For editors and proofreaders

Syllabification: non-

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