Frequency: The word is one of the 1500 most common words in English.
1.
You use nor after 'neither' in order to introduce the second alternative or the last of a number of alternatives in a negative statement.
Neither Mr Rose nor Mr Woodhead was available for comment yesterday...
I can give you neither an opinion nor any advice...
They can neither read nor write, nor can they comprehend such concepts.
CONJ
2.
You use nor after a negative statement in order to indicate that the negative statement also applies to you or to someone or something else.
'None of us has any idea how long we're going to be here.'-'Nor do I.'...
'If my husband has no future,' she said, 'then nor do my children.'...
He doesn't want to live in the country when he grows up, nor does he want to live in the city.
= neither
CONJ
3.
You use nor after a negative statement in order to introduce another negative statement which adds information to the previous one.
Cooking up a quick dish doesn't mean you have to sacrifice flavour. Nor does fast food have to be junk food.
= neither
CONJ