Is house a pronoun or common noun?

The Word 'house' is both a noun and a verb.

The noun 'house' (pronounced hous) is a common noun, a general Word for any building suitable for humans or animals to live in; a Word for a thing.

The verb 'house' (pronounced houz) is a Word meaning to provide shelter, space, or living quarters for humans or animals; a Word for an action.

A pronoun is a Word that takes the place of a noun in a sentence.

The pronoun that takes the place of the noun 'house' is it.

Example: We looked at a house on Elm Street. It seemed perfect.

Note: The are some dictionaries that designate the Word 'house' as an adjective, a Word used to describe a noun. For example, you may consider the compound noun 'house cat' as the noun 'cat' described by the adjective 'house', or the noun 'cat' described by the attributive noun (a noun functioning as an adjective) 'house'.