truthとは意味・読み方・使い方

語源

From Middle English trouthe, truthe, trewthe, treowthe, from 古期英語 trēowþ, trīewþ (“truth, veracity, faith, fidelity, loyalty, honour, pledge, covenant”), from Proto-Germanic *triwwiþō (“promise, covenant, contract”), from Proto-Indo-European *drū- (“tree”), from Proto-Indo-European *deru- (“firm, solid”), equivalent to true +‎ -th. Cognate with Norwegian trygd (“trustworthiness, security, insurance”), Icelandic tryggð (“loyalty, fidelity”).

発音

• enPR: trōōth, IPA^(key): /tɹuːθ/
• 韻: -uːθ

名詞

truth (usually uncountable, 複数形 truths)

1. True facts, genuine depiction or statements of reality.

   The truth is that our leaders knew a lot more than they were letting on.

   • 1835, Samuel Taylor Coleridge; Henry Nelson Coleridge, quoting Samuel Taylor Coleridge, Specimens of the Table Talk of the late Samuel Taylor Coleridge‎^[1], volume II, →ISBN, page 19:

     The truth depends on, or is only arrived at by, a legitimate deduction from all the facts which are truly material.

   • 2014 June 21, “Magician’s brain”, in The Economist‎^[2], volume 411, number 8892, archived from the original on 4 November 2018:

     The truth is that [Isaac] Newton was very much a product of his time. The colossus of science was not the first king of reason, Keynes wrote after reading Newton’s unpublished manuscripts. Instead “he was the last of the magicians”.

2. Conformity to fact or reality; correctness, accuracy.

   There was some truth in his statement that he had no other choice.

   • 2012 January 1, Robert M. Pringle, “How to Be Manipulative”, in American Scientist, volume 100, number 1, page 31:

     As in much of biology, the most satisfying truths in ecology derive from manipulative experimentation. Tinker with nature and quantify how it responds.

3. The state or quality of being true to someone or something.

   Truth to one's own feelings is all-important in life.

4. (archaic) Faithfulness, fidelity.
   • 1797-1816, Samuel Taylor Coleridge, Christabel

     Alas! they had been friends in youth, / But whispering tongues can poison truth.

5. (obsolete) A pledge of loyalty or faith.
6. Conformity to rule; exactness; close correspondence with an example, mood, model, etc.
   • 1707, J[ohn] Mortimer, The Whole Art of Husbandry; or, The Way of Managing and Improving of Land. […], 2nd edition, London: […] J[ohn] H[umphreys] for H[enry] Mortlock […], and J[onathan] Robinson […], published 1708, OCLC 13320837:

     Ploughs, […] to make them go true, […] depends much upon the truth of the ironwork.

   • 1840, Joseph Whitworth, "A Paper on Plane Metallic Surfaces or True Planes":

     The process of grinding is, in fact, regarded as indispensable wherever truth is required, yet that of scraping is calculated to produce a higher degree of truth than has ever been attained by grinding.

7. That which is real, in a deeper sense; spiritual or ‘genuine’ reality.

   The truth is what is.

   Alcoholism and redemption led me finally to truth.

   • 1819 May, John Keats, “Ode on a Grecian Urn”, in Lamia, Isabella, the Eve of St. Agnes, and Other Poems, London: […] [Thomas Davison] for Taylor and Hessey, […], published 1820, OCLC 927360557, stanza 5, page 116:

     "Beauty is truth, truth beauty,"—that is all / Ye know on earth, and all ye need to know.

8. (countable) Something acknowledged to be true; a true statement or axiom.

   Hunger and jealousy are just eternal truths of human existence.

   • 1813, Jane Austen, Pride and Prejudice‎^[3], OCLC 38659585, OL 6087610M:

     It is a truth universally acknowledged, that a single man in possession of a good fortune, must be in want of a wife.

9. (physics, dated) Topness; the property of a truth quark.
10. (games) In the game truth or dare, the choice to truthfully answer a question put forth.

    When asked truth or dare, he picked truth.

同意語

• See Thesaurus:truth

反意語

• falsehood, falsity, lie, nonsense, drivel, untruth, half-truth

派生語

関連する語

動詞

truth (三人称単数 現在形 truths, 現在分詞 truthing, 過去形および過去分詞形 truthed)

1. (obsolete, transitive) To assert as true; to declare; to speak truthfully.
   • c. 1636 John Ford, The Fancies Chaste and Noble

     Had they [the ancients] dreamt this, they would have truthed it heaven.

2. To make exact; to correct for inaccuracy.
   • 1974, Proceedings of the International Symposium on Remote Sensing of Environment, page 226:

     A concentrated region of the agricultural test area was intensively ground truthed, not only to identify the crop types, but equally important, also to begin to determine the parameters controlling the radar energy reflected from a crop type at a particular stage of growth.

   • 1990, Advanced Infrared Technology - Part 2, page cxxvi:

     As is shown in this table, APG images in the validation subset were only truthed with box models, and the 29P images in this subset were never truthed at all.

   • 2003, Advances in Pattern Recognition ICAPR2003, →ISBN, page 67:

     This database, which consisists of nearly 180,000 characters, was manually truthed.