closed-class word, function word - a word that is uninflected and serves a grammatical function but has little identifiable meaning

anaphoric pronoun - a pronoun that refers to an antecedent

demonstrative, demonstrative pronoun - a pronoun that points out an intended referent

personal pronoun - a pronoun expressing a distinction of person

reciprocal pronoun - a pronoun or pronominal phrase (as `each other') that expresses a mutual action or relationship between the individuals indicated in the plural subject; "The sentence `They cared for each other' contains a reciprocal pronoun"

relative pronoun - a pronoun (as `that' or `which' or `who') that introduces a relative clause referring to some antecedent