from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Consistent with fact or reality; not false or erroneous. See Synonyms at real1. See Usage Note at fact.
  • adj. Truthful.
  • adj. Real; genuine. See Synonyms at authentic.
  • adj. Reliable; accurate: a true prophecy.
  • adj. Faithful, as to a friend, vow, or cause; loyal. See Synonyms at faithful.
  • adj. Sincerely felt or expressed; unfeigned: true grief.
  • adj. Fundamental; essential: his true motive.
  • adj. Rightful; legitimate: the true heir.
  • adj. Exactly conforming to a rule, standard, or pattern: trying to sing true B.
  • adj. Accurately shaped or fitted: a true wheel.
  • adj. Accurately placed, delivered, or thrown.
  • adj. Quick and exact in sensing and responding.
  • adj. Determined with reference to the earth's axis, not the magnetic poles: true north.
  • adj. Conforming to the definitive criteria of a natural group; typical: The horseshoe crab is not a true crab.
  • adj. Narrowly particularized; highly specific: spoke of probity in the truest sense of the word.
  • adj. Computer Science Indicating one of two possible values taken by a variable in Boolean logic or a binary device.
  • adv. In accord with reality, fact, or truthfulness.
  • adv. Unswervingly; exactly: The archer aimed true.
  • adv. So as to conform to a type, standard, or pattern.
  • transitive v. To position (something) so as to make it balanced, level, or square: trued up the long planks.
  • n. Truth or reality. Used with the.
  • n. Proper alignment or adjustment: out of true.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Conforming to the actual state of reality or fact; factually correct.
  • adj. A state in Boolean logic that indicates an affirmative or positive result.
  • adj. Loyal, faithful.
  • adj. Genuine.
  • adj. Legitimate.
  • adj. Accurate; following a path toward the target.
  • adv. Accurately.
  • n. Truth.
  • n. The state of being in alignment.
  • v. To straighten.
  • v. To make even, level, symmetrical, or accurate, align; adjust.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Conformable to fact; in accordance with the actual state of things; correct; not false, erroneous, inaccurate, or the like.
  • adj. Right to precision; conformable to a rule or pattern; exact; accurate.
  • adj. Steady in adhering to friends, to promises, to a prince, or the like; unwavering; faithful; loyal; not false, fickle, or perfidious.
  • adj. Actual; not counterfeit, adulterated, or pretended; genuine; pure; real.
  • adj. Genuine; real; not deviating from the essential characters of a class.
  • adv. In accordance with truth; truly.

from The Century Dictionary and Cyclopedia

  • Conformable to fact; being in accordance with the actual state of things; not false, fictitious, or erroneous: as, a true story; a true statement.
  • What proposition is there respecting human nature which is absolutely and universally true?
  • Conformable to reason or to established rules or custom; exact; just; accurate; correct.
  • Conformable to law and justice; legitimate; rightful: as, the true heir.
  • Conformable to nature; natural; correct.
  • In biology:
  • Conforming or conformable to a type, norm, or standard of structure; typical; as, an amœba is a true animal; a canary is a true bird; the lion is a true cat; a frog or toad is not a true reptile.
  • Genuine; truebred; not hybrid or mongrel: as, a true merino sheep. Also used adverbially: as, to breed true.
  • Genuine; pure; real; not counterfeit, adulterated, false, or pretended.
  • In anatomy, complete; perfected: as, true ribs (that is, those which articulate with the breastbone, as distinguished from false or floating ribs); the true pelvis (that part of the pelvis below the superior strait or iliopectineal line); a true corpus luteum (the complete corpus luteum of pregnancy, as distinguished from the same body unaffected by the result of conception).
  • Free from falsehood; habitually speaking the truth; veracious; truthful.
  • Firm or steady in adhering to promises, to friends, to one's principles, etc.; not fickle, false, or perfidious; faithful; constant; loyal.
  • Honest.
  • Sure; unerring; unfailing.
  • Synonyms Veritable, actual. See reality.
  • 8 and Sincere, honorable.
  • To verify.
  • To make true in position, form, adjustment, or the like: give a right form to; adjust nicely; put a keen, fine, or smooth edge on; make exactly straight, square, plumb, level, or the like: a workmen's term.
  • n. in eccles. law, an expression formerly used at the end of each several article in the libel as descriptive of the charges therein contained.
  • n. Truth; fidelity.
  • n. Agreement; covenant; pledge.
  • n. A temporary cessation of war, according to agreement; respite from war; truce. See truce.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adv. as acknowledged
  • adj. determined with reference to the earth's axis rather than the magnetic poles
  • adj. not pretended; sincerely felt or expressed
  • adj. accurately placed or thrown
  • adj. in tune; accurate in pitch
  • adj. worthy of being depended on
  • adj. having a legally established claim
  • adj. consistent with fact or reality; not false
  • adj. rightly so called
  • adj. devoted (sometimes fanatically) to a cause or concept or truth
  • adj. expressing or given to expressing the truth
  • adj. accurately fitted; level
  • n. proper alignment; the property possessed by something that is in correct or proper alignment
  • v. make level, square, balanced, or concentric
  • adj. conforming to definitive criteria


from The American Heritage® Dictionary of the English Language, 4th Edition

Middle English trewe, from Old English trēowe, firm, trustworthy.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Middle English trewe, from Old English trīewe, (Mercian) trēowe ("trusty, faithful"), from Proto-Germanic *triwwiz (compare Dutch getrouw and trouw, German treu, Swedish trygg ("safe, secure’"), from pre-Germanic *dreu̯h₂i̯os, from Proto-Indo-European *druh₂, *dreu̯h₂ ‘steady, firm’ (compare Irish dearbh ("sure"), Old Prussian druwis ("faith"), Ancient Greek droós ("firm")), extension of *dóru ‘tree’. More at tree. For semantic development, compare Latin robustus ("tough") from robur ("red oak").



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