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   sine

   /sʌɪn/

   noun

   • 1. the trigonometric function that is equal to the ratio of the side opposite a given angle (in a right-angled triangle) to the hypotenuse.

   Word Origin late 16th century: from Latin sinus ‘curve’, used in medieval Latin as a translation of Arabic jayb ‘pocket, sine’.

   Scrabble Points: 4

   • S

     1

   • I

     1

   • N

     1

   • E

     1

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