Definition of SINE

sine

Meanings

Plural: sines

Noun

  • ratio of the length of the side opposite the given angle to the length of the hypotenuse of a right-angled triangle
  • In a right triangle, the ratio of the length of the side opposite an angle to the length of the hypotenuse.

Origin / Etymology

Borrowed from Latin sinus (“curve, bend; bosom”), a translation of Arabic جَيْب (jayb, “bosom”), a misidentification of the notation جيب (j-y-b), written without vowel diacritics, standing for Arabic جِيبَ (jība, “sine”), in turn from Sanskrit ज्या (jyā, “sine, chord, bowstring”) through the similar Sanskrit जीव (jīva, “sine, chord, life, existence”). Doublet of sinus.

Synonyms

sin

Scrabble Score: 4

sine is a valid Scrabble (US) TWL word
sine is a valid Scrabble Word in Merriam-Webster MW Dictionary
sine is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 5

sine is a valid Words With Friends word