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straighten

/ˈstɹeɪtn̩/ verb

verb Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about straighten at Wordnik → Where our words come from →

  1. Straighten up or out; make straight.
  2. Make straight.
  3. Get up from a sitting or slouching position.
    The students straightened when the teacher entered

Origin

From straight + -en. Compare Scots strauchten (“to straighten”).

From Wiktionary, via Kaikki.org (CC BY-SA)