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[troo] /tru/
adjective, truer, truest.
being in accordance with the actual state or conditions; conforming to reality or fact; not false:
a true story.
real; genuine; authentic:
true gold; true feelings.
sincere; not deceitful:
a true interest in someone's welfare.
firm in allegiance; loyal; faithful; steadfast:
a true friend.
being or reflecting the essential or genuine character of something:
the true meaning of his statement.
conforming to or consistent with a standard, pattern, or the like:
a true copy.
exact; precise; accurate; correct:
a true balance.
of the right kind; such as it should be; proper:
to arrange things in their true order.
properly so called; rightly answering to a description:
true statesmanship.
legitimate or rightful:
the true heir.
reliable, unfailing, or sure:
a true sign.
exactly or accurately shaped, formed, fitted, or placed, as a surface, instrument, or part of a mechanism.
honest; honorable; upright.
Biology. conforming to the type, norm, or standard of structure of a particular group; typical:
The lion is a true cat.
Animal Husbandry. purebred.
Navigation. (of a bearing, course, etc.) determined in relation to true north.
Archaic. truthful.
exact or accurate formation, position, or adjustment:
to be out of true.
the true, something that is true; truth.
in a true manner; truly; truthfully.
exactly or accurately.
in conformity with the ancestral type:
to breed true.
verb (used with object), trued, truing or trueing.
to make true; shape, adjust, place, etc., exactly or accurately:
to true the wheels of a bicycle after striking a pothole.
(especially in carpentry) to make even, symmetrical, level, etc. (often followed by up):
to true up the sides of a door.
come true, to have the expected or hoped-for result; become a reality:
She couldn't believe that her dream would ever come true.
Origin of true
before 900; Middle English trewe (adj. and adv.), Old English trēowe (adj.) loyal, trusty, honest (see trow, truce); akin to Dutch trouw, German treu, Old Norse tryggr, Gothic triggws
Related forms
trueness, noun
half-true, adjective
1. factual, veracious. 3. honest. 4. trustworthy; staunch, constant, steady, unwavering. 7. faithful.
Synonym Study
1. See real1. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for trued
Historical Examples
  • At least as many of its surfaces should be trued as are necessary for the "lay out."

    Handwork in Wood

    William Noyes
  • After the boring is completed the edge E is trued by the large-face milling cutter M bolted to the spindle sleeve.

    Turning and Boring Franklin D. Jones
  • When these surfaces have been trued up carefully, remove the piece from the vise and saw the pattern from it.

    The Boy Craftsman A. Neely Hall
  • After the corner has been soldered and the box pickled, it is again placed over a block and trued up square.

    Copper Work Augustus F. Rose
  • If the face is somewhat irregular, it can be trued up by placing it on a block of wood and going over it with a rawhide hammer.

    Copper Work Augustus F. Rose
  • This will give the general shape of the bowl which may be trued up later by sawing and filing.

    Copper Work Augustus F. Rose
  • The invert was trued up by drawing along the runners a semi-circular templet having a radius of 21½ ins.

    Concrete Construction Halbert P. Gillette
  • Straight-edges are sometimes made of cast steel and trued on both edges.

  • Smoothing planes are, as the name implies, used to simply smoothen the work surface after it has been trued.

  • The surplus metal on the top end is now cut off and trued up.

British Dictionary definitions for trued


adjective truer, truest
not false, fictional, or illusory; factual or factually accurate; conforming with reality
(prenominal) being of real or natural origin; genuine; not synthetic: true leather
  1. unswervingly faithful and loyal to friends, a cause, etc: a true follower
  2. (as collective noun; preceded by the): the loyal and the true
faithful to a particular concept of truth, esp of religious truth: a true believer
conforming to a required standard, law, or pattern: a true aim, a true fit
exactly in tune: a true note
(of a compass bearing) according to the earth's geographical rather than magnetic poles: true north
(biology) conforming to the typical structure of a designated type: sphagnum moss is a true moss, Spanish moss is not
(physics) not apparent or relative; taking into account all complicating factors: the true expansion of a liquid takes into account the expansion of the container Compare apparent (sense 3)
(informal) not true, unbelievable; remarkable: she's got so much money it's not true
true to life, exactly comparable with reality
correct alignment (esp in the phrases in true, out of true)
truthfully; rightly
precisely or unswervingly: he shot true
(biology) without variation from the ancestral type: to breed true
verb trues, truing, trued
(transitive) to adjust so as to make true
Derived Forms
trueness, noun
Word Origin
Old English triewe; related to Old Frisian triūwe, Old Saxon, Old High German triuwi loyal, Old Norse tryggr; see trow, trust
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for trued



Old English triewe (West Saxon), treowe (Mercian) "faithful, trustworthy," from Proto-Germanic *trewwjaz "having or characterized by good faith" (cf. Old Frisian triuwi, Dutch getrouw, Old High German gatriuwu, German treu, Old Norse tryggr, Gothic triggws "faithful, trusty"), perhaps ultimately from PIE *dru- "tree," on the notion of "steadfast as an oak." Cf., from same root, Lithuanian drutas "firm," Welsh drud, Old Irish dron "strong," Welsh derw "true," Old Irish derb "sure."

Sense of "consistent with fact" first recorded c.1200; that of "real, genuine, not counterfeit" is from late 14c.; that of "agreeing with a certain standard" (as true north) is from c.1550. Of artifacts, "accurately fitted or shaped" it is recorded from late 15c.; the verb in this sense is from 1841. True-love (adj.) is recorded from late 15c.; true-born first attested 1590s. True-false as a type of test question is recorded from 1923.

Online Etymology Dictionary, © 2010 Douglas Harper
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Idioms and Phrases with trued
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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