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There are 2 fifteen-letter words containing NKNOWN

unknown␣quantityunknown␣unknowns

3 definitions found

  • unknown␣quantity — n. (Idiomatic) A person or thing whose nature or value is a mystery. — n. Used other than figuratively or idiomatically: see unknown, quantity.
  • unknown␣unknowns — n. Plural of unknown unknown.
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