1. [n]  
2. [n]  a person's body (usually including their clothing); "a weapon was hidden on his person"
3. [n]  a grammatical category of pronouns and verb forms; "stop talking about yourself in the third person"

Person
Drawing on data from over five hundred languages, Anna Siewierska compares the use of person within and across different languages, and examines the factors underlying variation. Siewierska demonstrates how person forms vary in substance (how large they are), in the nature of the semantic distinctions they convey (e.g., gender, number, case), and in their use in sentences and discourse. The textbook covers the grammatical category of person, which includes the first person (the speaker), the second person (the hearer), and the third person (neither the speaker nor the hearer).

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1. \Per"son\, n. [OE. persone, persoun, person, parson, OF.
   persone, F. personne, L. persona a mask (used by actors), a
   personage, part, a person, fr. personare to sound through;
   per + sonare to sound. See {Per-}, and cf. {Parson}.]
   1. A character or part, as in a play; a specific kind or
      manifestation of individual character, whether in real
      life, or in literary or dramatic representation; an
      assumed character. [Archaic]
            His first appearance upon the stage in his new
            person of a sycophant or juggler.     --Bacon.
            No man can long put on a person and act a part.
                                                  --Jer. Taylor.
            To bear rule, which was thy part And person, hadst
            thou known thyself aright.            --Milton.
            How different is the same man from himself, as he
            sustains the person of a magistrate and that of a
            friend!                               --South.
   2. The bodily form of a human being; body; outward
      appearance; as, of comely person.
            A fair persone, and strong, and young of age.
                                                  --Chaucer.
            If it assume my noble father's person. --Shak.
            Love, sweetness, goodness, in her person shined.
                                                  --Milton.
   3. A living, self-conscious being, as distinct from an animal
      or a thing; a moral agent; a human being; a man, woman, or
      child.
            Consider what person stands for; which, I think, is
            a thinking, intelligent being, that has reason and
            reflection.                           --Locke.
   4. A human being spoken of indefinitely; one; a man; as, any
      person present.
   5. A parson; the parish priest. [Obs.] --Chaucer.
   6. (Theol.) Among Trinitarians, one of the three subdivisions
      of the Godhead (the Father, the Son, and the Holy Ghost);
      an hypostasis. ``Three persons and one God.'' --Bk. of
      Com. Prayer.
   7. (Gram.) One of three relations or conditions (that of
      speaking, that of being spoken to, and that of being
      spoken of) pertaining to a noun or a pronoun, and thence
      also to the verb of which it may be the subject.
   Note: A noun or pronoun, when representing the speaker, is
         said to be in the first person; when representing what
         is spoken to, in the second person; when representing
         what is spoken of, in the third person.
   8. (Biol.) A shoot or bud of a plant; a polyp or zooid of the
      compound Hydrozoa Anthozoa, etc.; also, an individual, in
      the narrowest sense, among the higher animals. --Haeckel.
            True corms, composed of united person[ae] . . .
            usually arise by gemmation, . . . yet in sponges and
            corals occasionally by fusion of several originally
            distinct persons.                     --Encyc. Brit.
   {Artificial}, or {Fictitious}, {person} (Law), a corporation
      or body politic. --blackstone.
   {Natural person} (Law), a man, woman, or child, in
      distinction from a corporation.
   {In person}, by one's self; with bodily presence; not by
      representative. ``The king himself in person is set
      forth.'' --Shak.
   {In the person of}, in the place of; acting for. --Shak.
   

2. \Per"son\, v. t.
   To represent as a person; to personify; to impersonate.
   [Obs.] --Milton.