/ nɔː(r); NAmE / conjunction , adverb
1.
neither ... nor ... | not ... nor ... and not :
She seemed neither surprised nor worried.
He wasn't there on Monday. Nor on Tuesday, for that matter.
( formal )
Not a building nor a tree was left standing.
2.
used before a positive verb to agree with sth negative that has just been said :
She doesn't like them and nor does Jeff.
'I'm not going.' 'Nor am I.'
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WORD ORIGIN
Middle English : contraction of Old English nother neither .