The Collaborative International Dictionary of English v.0.48:

Exhibit \Ex*hib"it\, v. t. [imp. & p. p. Exhibited; p. pr. &
   vb. n. Exhibiting.] [L. exhibitus, p. p. of exhibere to
   hold forth, to tender, exhibit; ex out + habere to have or
   hold. See Habit.]
   1. To hold forth or present to view; to produce publicly, for
      inspection; to show, especially in order to attract notice
      to what is interesting; to display; as, to exhibit
      commodities in a warehouse, a picture in a gallery.
      [1913 Webster]

            Exhibiting a miserable example of the weakness of
            mind and body.                        --Pope.
      [1913 Webster]

   2. (Law) To submit, as a document, to a court or officer, in
      course of proceedings; also, to present or offer
      officially or in legal form; to bring, as a charge.
      [1913 Webster]

            He suffered his attorney-general to exhibit a charge
            of high treason against the earl.     --Clarendon.
      [1913 Webster]

   3. (Med.) To administer as a remedy; as, to exhibit calomel.
      [1913 Webster]

   To exhibit a foundation or prize, to hold it forth or to
      tender it as a bounty to candidates.

   To exibit an essay, to declaim or otherwise present it in
      public. [Obs.]
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Exhibit \Ex*hib"it\, n.
   1. Any article, or collection of articles, displayed to view,
      as in an industrial exhibition; a display; as, this
      exhibit was marked A; the English exhibit.
      [1913 Webster]

   2. (Law) A document produced and identified in court for
      future use as evidence.
      [1913 Webster]

WordNet (r) 3.0 (2006):

exhibit
    n 1: an object or statement produced before a court of law and
         referred to while giving evidence
    2: something shown to the public; "the museum had many exhibits
       of oriental art" [syn: display, exhibit, showing]
    v 1: show an attribute, property, knowledge, or skill; "he
         exhibits a great talent"
    2: to show, make visible or apparent; "The Metropolitan Museum
       is exhibiting Goya's works this month"; "Why don't you show
       your nice legs and wear shorter skirts?"; "National leaders
       will have to display the highest skills of statesmanship"
       [syn: expose, exhibit, display]
    3: give an exhibition of to an interested audience; "She shows
       her dogs frequently"; "We will demo the new software in
       Washington" [syn: show, demo, exhibit, present,
       demonstrate]
    4: walk ostentatiously; "She parades her new husband around
       town" [syn: parade, exhibit, march]

Moby Thesaurus II by Grady Ward, 1.0:

166 Moby Thesaurus words for "exhibit":
   advertise, affect, air, approve, argue, attest, basis for belief,
   benefit, bespeak, betoken, betray, bill, blazon forth,
   body of evidence, brandish, breathe, bring forth, bring forward,
   bring into view, bring out, bring to notice, chain of evidence,
   clue, connote, cosmorama, cyclorama, dangle, data, datum, debut,
   demonstrate, demonstration, denote, develop, diorama, disclose,
   display, disport, divulge, documentation, dramatize, emblazon,
   embody, enact, enactment, entertainment, evidence, evince,
   exemplify, exhibition, expose, expose to view, exposition,
   exposure, express, fact, facts, fair, farewell performance, flash,
   flaunt, flesh show, flourish, furnish evidence, georama,
   give indication of, give sign, give token, go to show, grounds,
   grounds for belief, highlight, hold up, illuminate, illustrate,
   imply, incarnate, indicate, indication, involve, item of evidence,
   light show, make clear, make plain, manifest, manifestation, mark,
   material grounds, materialize, mean, muniments, mute witness,
   myriorama, offer, opening, ostentation, pageant, pageantry,
   panorama, parade, perform, performance, phantasmagoria,
   piece of evidence, point to, pomp, premiere, premises, present,
   presentation, presentment, proclaim, produce, production,
   projection, proof, psychedelic show, put forth, put forward,
   reason to believe, relevant fact, represent, representation,
   retrospective, reveal, roll out, set forth, shifting scene, show,
   show forth, show off, show signs of, showing, sight, sign,
   signalize, signify, speak for itself, speak volumes, spectacle,
   sport, spotlight, stage presentation, stage show, suggest,
   swan song, symptom, symptomatize, tableau, tableau vivant, tell,
   tend to show, theatrical performance, token, trot out, trumpet,
   trumpet forth, tryout, unfold, unfolding, unfoldment, unveiling,
   varnishing day, vaunt, vernissage, wave



Bouvier's Law Dictionary, Revised 6th Ed (1856):

EXHIBIT, practice. Where a paper or other writing is on motion, or on other
occasion, proved; or if an affidavit to which the paper writing is annexed,
refer to it, it is usual to mark the same with a capital letter, and to add,
"This paper writing marked with the letter A, was shown to the deponent at
the time of his being sworn by me, and is the writing by him referred to in
the affidavit annexed hereto." Such paper or other writing, with this
attestation, signed by the judge or other person before whom the affidavit
shall have been sworn, is called an exhibit. Vide Stra. 674; 2 P. Wms. 410;
Gresl. Eq. Ev. 98.