Real Dictionary

first person
singular noun: A statement in the first person is a statement about yourself, or about yourself and someone else. The subject of a statement like this is 'I' or 'we'.

first person in British English
the form of a pronoun (as I) or verb (as am) that refers to the speaker or writer or, in the plural, also to those for whom the speaker or writer serves as spokesperson
modifier: using the first person grammatical category of pronouns and verbs
noun: a grammatical category of pronouns and verbs used by the speaker to refer to or talk about himself or herself, either alone (first person singular) or together with others (first person plural)
noun: the grammatical person used by a speaker in statements referring to himself or herself or to a group including himself or herself, as I and we in English