The Collaborative International Dictionary of English v.0.48:

Truth \Truth\, v. t.
   To assert as true; to declare. [R.]
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         Had they [the ancients] dreamt this, they would have
         truthed it heaven.                       --Ford.
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The Collaborative International Dictionary of English v.0.48:

Truth \Truth\, n.; pl. Truths. [OE. treuthe, trouthe, treowpe,
   AS. tre['o]w?. See True; cf. Troth, Betroth.]
   1. The quality or being true; as:
      (a) Conformity to fact or reality; exact accordance with
          that which is, or has been; or shall be.
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      (b) Conformity to rule; exactness; close correspondence
          with an example, mood, object of imitation, or the
          like.
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                Plows, to go true, depend much on the truth of
                the ironwork.                     --Mortimer.
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      (c) Fidelity; constancy; steadfastness; faithfulness.
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                Alas! they had been friends in youth,
                But whispering tongues can poison truth.
                                                  --Coleridge.
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      (d) The practice of speaking what is true; freedom from
          falsehood; veracity.
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                If this will not suffice, it must appear
                That malice bears down truth.     --Shak.
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   2. That which is true or certain concerning any matter or
      subject, or generally on all subjects; real state of
      things; fact; verity; reality.
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            Speak ye every man the truth to his neighbor.
                                                  --Zech. viii.
                                                  16.
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            I long to know the truth here of at large. --Shak.
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            The truth depends on, or is only arrived at by, a
            legitimate deduction from all the facts which are
            truly material.                       --Coleridge.
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   3. A true thing; a verified fact; a true statement or
      proposition; an established principle, fixed law, or the
      like; as, the great truths of morals.
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            Even so our boasting . . . is found a truth. --2
                                                  Cor. vii. 14.
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   4. Righteousness; true religion.
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            Grace and truth came by Jesus Christ. --John i. 17.
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            Sanctify them through thy truth; thy word is truth.
                                                  --John xvii.
                                                  17.
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   In truth, in reality; in fact.

   Of a truth, in reality; certainly.

   To do truth, to practice what God commands.
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            He that doeth truth cometh to the light. --John iii.
                                                  21.
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WordNet (r) 3.0 (2006):

truth
    n 1: a fact that has been verified; "at last he knew the truth";
         "the truth is that he didn't want to do it"
    2: conformity to reality or actuality; "they debated the truth
       of the proposition"; "the situation brought home to us the
       blunt truth of the military threat"; "he was famous for the
       truth of his portraits"; "he turned to religion in his search
       for eternal verities" [syn: truth, the true, verity,
       trueness] [ant: falseness, falsity]
    3: a true statement; "he told the truth"; "he thought of
       answering with the truth but he knew they wouldn't believe
       it" [syn: truth, true statement] [ant: falsehood,
       falsity, untruth]
    4: the quality of being near to the true value; "he was
       beginning to doubt the accuracy of his compass"; "the lawyer
       questioned the truth of my account" [syn: accuracy,
       truth] [ant: inaccuracy]
    5: United States abolitionist and feminist who was freed from
       slavery and became a leading advocate of the abolition of
       slavery and for the rights of women (1797-1883) [syn:
       Truth, Sojourner Truth]

Moby Thesaurus II by Grady Ward, 1.0:

85 Moby Thesaurus words for "truth":
   a priori truth, absolute certainty, absolute credibility,
   absoluteness, accomplished fact, accuracy, actuality, actually,
   assurance, assuredness, authenticity, axiom, brocard, candor,
   certain knowledge, certainness, certainty, certitude, correctness,
   credibility, dead certainty, definiteness, determinacy,
   determinateness, dictate, dictum, fact, facts, factuality,
   fait accompli, formula, genuineness, golden rule, gospel,
   grim reality, historicity, in fact, in truth, ineluctability,
   inerrability, inerrancy, inevitability, infallibilism,
   infallibility, law, necessity, nonambiguity, noncontingency,
   not a dream, objective existence, positiveness, postulate,
   precision, predestination, predetermination, principium, principle,
   probatum, proposition, proved fact, reality, really, rightness,
   rule, self-evident truth, settled principle, sureness, surety,
   theorem, trueness, truism, truly, truth-loving, truth-speaking,
   truth-telling, truthfulness, unambiguity, unequivocalness,
   universal truth, univocity, unmistakableness, veraciousness,
   veracity, veridicality, verity



Easton's 1897 Bible Dictionary:

Truth
   Used in various senses in Scripture. In Prov. 12:17, 19, it
   denotes that which is opposed to falsehood. In Isa. 59:14, 15,
   Jer. 7:28, it means fidelity or truthfulness. The doctrine of
   Christ is called "the truth of the gospel" (Gal. 2:5), "the
   truth" (2 Tim. 3:7; 4:4). Our Lord says of himself, "I am the
   way, and the truth" (John 14:6).


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

TRUTH. The actual state of things.
     2. In contracts, the parties are bound to toll the truth in their
dealings, and a deviation from it will generally avoid the contract; Newl.
on Contr. 352-3; 2 Burr. 1011; 3 Campb. 285; and even concealment, or
suppressio veri, will be considered fraudulent in the contract of insurance.
1 Marsh. on Ins. 464; Peake's N. P. C. 115; 3 Campb. 154, 506.
     3. In giving his testimony, a witness is required to tell the truth,
the whole truth, and nothing but the truth; for the object in the
examination of matters of fact, is to ascertain truth.
     4. When a defendant is sued civilly for slander or a libel, he may
justify by giving the truth in evidence; but when a criminal prosecution is
instituted by the commonwealth for a libel, he cannot generally justify by
giving the truth in evidence.
     5. The constitutions of several of the United States have made special
provisions in favor of giving the truth in evidence in prosecutions for
libels, under particular circumstances. In the constitutions of
Pennsylvania, Delaware, Tennessee, Kentucky, Ohio, Indiana and Illinois, it
is declared, that in publications for libels on men in respect to their
public official conduct, the truth may be given in evidence, when the matter
published was proper for public information. The constitution of New York
declares, that in all prosecutions or indictments for libels, the truth may
be given in evidence to the jury; and if it shall appear to the jury that
the matter charged as libelous, is true, and was published with good motives
and for justifiable ends, the party shall be acquitted. By constitutional
provision in Mississippi and Missouri, and by legislative enactment in New
Jersey, Arkansas, Tennessee, Act of 1805, c. 6: and Vermont, Rev. Stat. tit.
11, c. 25, s.  68; the right to give the truth in evidence has been more
extended; it applies to all prosecutions or indictments for libels, without
any qualifications annexed in restraint of the privilege. Cooke on Def. 61.



The Devil's Dictionary (1881-1906):

TRUTH, n.  An ingenious compound of desirability and appearance.
Discovery of truth is the sole purpose of philosophy, which is the
most ancient occupation of the human mind and has a fair prospect of
existing with increasing activity to the end of time.