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Definition of "x" [x]

  • The 24th letter of the modern English alphabet. (noun)
  • Any of the speech sounds represented by the letter x. (noun)
  • The 24th in a series. (noun)
  • Something shaped like the letter X. (noun)
  • A mark inscribed to represent the signature of one who is unable to sign one's name. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "x" in a sentence
  • "'' x''⁰ '' x''¹ '' x''² '' x''³ '' x''⁴ x⁵ x⁶ x⁷ x⁸ x⁹ ε"
  • "Dekrementasi (dikurang 1)  x = y Assignment = x = y x+ = y  x = x+y + = x - = y  x = x-y - = x* = y  x = x*y"
  • "(x - y) ² = x² - 2xy + y² x² - y² = (x + y) (x - y) (x + y) ³ = x³ + 3x²y + 3xy² + y³"