Open Dictionary
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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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Usage examples (34)
  • Most of Iran's centrifuges are based on a European design nearly a half-century-old.
  • Politics as spectacle is a half-century-old criticism that has outlived its usefulness.
  • But no, these are words from Samuel Beckett's classic half-century-old play, "Waiting for Godot."
  • A half-century-old government program has helped 60 million students pay for a college education.
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The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.