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crux JUST WRITTEN FOR YOU

/krʌks/ · crux
noun
  1. The basic, central, or essential point or feature. The crux of her argument was that the roadways needed repair before anything else could be accomplished.
  2. The critical or transitional moment or issue, a turning point. The crux of the battle came when the two armies clashed in the center of the field.
  3. A puzzle or difficulty. The crux of the problem was figuring out how to get the heavy box down from the top shelf.

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Did you know? The word 'crux' is often used in puzzles and brain teasers, where it refers to the central challenge or problem to be solved.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Jul 15, 2026