truthy

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English[edit]

Etymology[edit]

From truth +‎ -y. In colloquial sense, after truthiness.

Pronunciation[edit]

Adjective[edit]

truthy (comparative truthier, superlative truthiest)

  1. (obsolete) Faithful; true. [19th c.]
    • c. 1800, J. H. Colls, Theodore:
      You […] are afraid Theodore your sweetheart shouldn't prove truthy.
  2. (US, colloquial) Only superficially true; that is asserted or felt instinctively to be true, with no recourse to facts. [from 21st c.]
    • 2011, Steven Pinker, The Better Angels of Our Nature, Penguin 2012, p. 595:
      Historians today point out that each of these ringing assertions was, at best, truthy.
  3. (computing, programming) Evaluating to true in a Boolean context.
    • 2012, David Flanagan, JavaScript Pocket Reference (page 40)
      In JavaScript, any expression or statement that expects a boolean value will work with a truthy or falsy value, so the fact that && does not always evaluate to true or false does not cause practical problems.

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