Definitions from Wiktionary (need not)
▸ verb: (chiefly UK, auxiliary, indicating absence of necessity) do not have to, do not need to.
▸ verb: (auxiliary, indicating inadvisability) Ought not to.
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▸ verb: (chiefly UK, auxiliary, indicating absence of necessity) do not have to, do not need to.
▸ verb: (auxiliary, indicating inadvisability) Ought not to.
Similar:
needn't,
don't,
mustn't,
oughtn't,
doesn't,
didn't,
shouldn't,
won't,
mightn't,
not want to do that,
more...
Opposite:
Phrases:
▸ Words similar to need not
▸ Usage examples for need not
▸ Idioms related to need not
▸ Wikipedia articles (New!)
▸ Words that often appear near need not
▸ Rhymes of need not
▸ Invented words related to need not