Is her a noun or pronoun?

The Word 'her' is a pronoun.

The Word 'her' is the third person, singular, objective, personal pronoun; a Word that takes the place of a noun for a female. Example:

• Mom loves these flowers. I'll buy some for her.

The Word 'her' is the third person, singular, possessive adjective; a Word that describes a noun as belonging to a female. Example:

• Anne is driving her car to the city.