Is somewhere a common noun

Answer 1

No, the word 'somewhere' is not a noun.

The word 'somewhere' is a pronoun and an adverb.

The pronoun 'somewhere' is an indefinite pronoun, a word that takes the place of a noun for an unknown or unnamed place.

The adverb 'somewhere' is a word used to modify a verb, an adjective, or another adverb as in or at an unknown place.

Examples:

Somewhere, over the rainbow, blue birds fly. (pronoun)

Somewhere there are people who have nothing in this world to do but ride around in fancy cars and dine on Russian caviar. (adverb)

Answer 2

No, "somewhere" is not a common noun. It is an adverb that refers to a place that is unspecified or unknown.