Is where a common noun?

Answer 1

Yes, the word 'where' is a noun, an adverb, and a conjunction.

The noun 'where' is a common noun, a general word for any place or position.

Examples:

No one knows from where he came. (noun, object of the preposition 'from')

Where is the mystery. (noun, subject of the sentence)

Where is it? (adverb, 'it is where')

Where did you see it last? (adverb, 'did see where')

We plan to vacation where we went last year. (conjunction)

The beach where we had such fun is our destination. (adverb, introduces the adverbial clause)