needn't
(negative auxiliary, chiefly, British, formal, or, literary) Need not.
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(negative auxiliary, chiefly, British, formal, or, literary) Need not.
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UK and Irish slang — Cockney, Scouse, Geordie, Yorkshire, Glaswegian, Brummie, Welsh, West Country, plus Irish English. Centuries of regional dialects feeding into modern British and Irish street talk.
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- need not85%
(chiefly, UK, auxiliary) Indicating absence of necessity; needn't, do(es) not have to, do(es) not need to.
- need not82%
(auxiliary, dated) Indicating inadvisability; ought not to.
- shouldn't72%
Should not (negative auxiliary).
- mightn't72%
(chiefly, UK, archaic, in, USA) might not (negative auxiliary).
- oughtn't71%
(UK, Ireland, Commonwealth) (US, Philippines, dated, rare) ought not (negative auxiliary).