flint

noun
🔊/flɪnt/
🔊/flɪnt/
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  1. [uncountable, countable] a type of very hard grey stone that can produce a spark when it is hit against steel; a piece of this stone燧石;火石
    • prehistoric flint implements史前燧石工具
    • His eyes were as hard as flint.他的眼神冷酷无情。🔊🔊
  2. [countable] a piece of flint or hard metal that is used to produce a spark 打火石
  3. Word OriginOld English; related to Middle Dutch vlint and Old High German flins.