Source : Webster's Revised Unabridged Dictionary (1913)

Guest \Guest\, n. (Zo["o]l.)
   (a) Any insect that lives in the nest of another without
       compulsion and usually not as a parasite.
   (b) An inquiline.

Guest \Guest\, n. [OE. gest, AS. g[ae]st, gest; akin to OS., D.,
   & G. gust, Icel gestr, Sw. g["a]st, Dan. Gj["a]st, Goth.
   gast, Russ. goste, and to L. hostis enemy, stranger; the
   meaning stranger is the older one, but the root is unknown.
   Cf. {Host} an army, {Hostile}.]
   1. A visitor; a person received and entertained in one's
      house or at one's table; a visitor entertained without
      pay.

            To cheer his gueste, whom he had stayed that night.
                                                  --Spenser.

            True friendship's laws are by this rule exprest.
            Welcome the coming, speed the parting guest. --Pope.

Guest \Guest\, v. t.
   To receive or entertain hospitably. [Obs.] --Sylvester.

Guest \Guest\, v. i.
   To be, or act the part of, a guest. [Obs.]

         And tell me, best of princes, who he was That guested
         here so late.                            --Chapman.

Source : WordNet®

guest
     adj : staying temporarily; "a visiting foreigner"; "guest
           conductor" [syn: {visiting}, {guest(a)}]

guest
     n 1: a visitor to whom hospitality is extended [syn: {invitee}]
     2: United States journalist (born in England) noted for his
        syndicated homey verse (1881-1959) [syn: {Edgar Guest}, {Edgar
        Albert Guest}]
     3: a customer of a hotel or restaurant etc.
     4: (computer science) any computer that is hooked up to a
        computer network [syn: {node}, {client}]