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puzzle

/ˈpʌzəl/ noun

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

  1. A particularly baffling problem that is said to have a correct solution.
    he loved to solve chessmate puzzles
  2. A game that tests your ingenuity.

verb

  1. Be a mystery or bewildering to.
    This beats me!
  2. Be uncertain about; think about without fully understanding or being able to decide.
    We puzzled over her sudden departure

Origin

The verb, of uncertain origin, is attested first.

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