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non-

prefix \(ˈ)nän also ˌnən or ˈnən before ˈ-stressed syllable, ˌnän also ˌnən before ˌ-stressed or unstressed syllable; the variant with ə is also to be understood at pronounced entries, though not shown\

Definition of non-

1 : not : other than : reverse of : absence of nontoxic nonlinear
2 : of little or no consequence : unimportant : worthless nonissues nonsystem
3 : lacking the usual especially positive characteristics of the thing specified noncelebration nonart

See non- defined for English-language learners

See non- defined for kids

Origin and Etymology of non-

Middle English, from Anglo-French, from Latin non not, from Old Latin noenum, from ne- not + oinom, neuter of oinos one — more at no, one

NON- Defined for English Language Learners

non-

prefix

Definition of non- for English Language Learners

: not

Medical Dictionary

non-

prefix

Medical Definition of non-

: not : reverse of : absence of nonallergic

Learn More about non-

Britannica English: Translation of non- for Arabic speakers

Seen and Heard

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WORD OF THE DAY

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BROWSE DICTIONARY

noms de plume

-nomy

non-

non-A, non-B hepatitis

nonabrasive

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