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View synonyms for x

x

1

[eks]

verb (used with object)

x-ed, x'd , x-ing, x'ing .
  1. to cross out or mark with or as if with an x (often followed byout ).

    to x out an error.

  2. to indicate choice, as on a ballot or examination (often followed byin ).

    to x in the candidate of your choice.



X

2
Or x

[eks]

noun

plural

X's, Xs, x's, xs. 
  1. the 24th letter of the English alphabet, a consonant.

  2. any spoken sound or combination of sounds represented by the letter X or x, as in xylene, box, or exact.

  3. something having the shape of an X .

  4. a written or printed representation of the letter X or x.

  5. a device, as a printer's type, for reproducing the letter X or x.

x

3

abbreviation

  1. ex.

  2. excess.

  3. Stock Exchange.

    1. (of stock trading) ex dividend.

    2. (of bond trading) ex interest.

  4. experimental.

  5. extra.

X

4

abbreviation

  1. experimental.

  2. extra.

  3. extraordinary.

x

5
Symbol.
  1. an unknown quantity or a variable.

    1. the letter x used to replace or obscure a gender morpheme, as to avoid the -o or -a inflection of a word borrowed from Spanish or the sequence m-e-n in the word women . See Latinx, womxn.

    2. the letter x indicating a variable and used to hold a place in a word or abbreviation that can be occupied by another letter, as in CxO to account for a range of specialized executive positions in a corporation, for example CEO , CFO , and COO .

  2. (used at the end of letters, telegrams, etc., to indicate a kiss.)

  3. (used to indicate multiplication) times.

    8 × 8=64.

  4. (used between figures indicating dimensions) by.

    3″ × 4″ (read: “three by four inches”);

    3″ × 4″ × 5″ (read: “three by four by five inches”).

  5. power of magnification.

    a 50x telescope.

  6. (used as a signature by an illiterate person.)

  7. cross.

  8. crossed with.

  9. (used to indicate a particular place or point on a map or diagram).

    X marks the spot where the pirates' treasure is buried.

  10. out of; foaled by.

    a colt by Flag-a-way x Merrylegs.

  11. (used to indicate choice, as on a ballot, examination, etc.)

  12. (used to indicate an error or incorrect answer, as on a test.)

  13. Mathematics.,  (in Cartesian coordinates) the x-axis.

  14. Chess.,  captures.

  15. a person, thing, agency, factor, etc., of unknown identity.

    I feel sorry for poor Mr. X, the man she will ultimately marry.

X

6
Symbol.
  1. the 24th in order or in a series.

  2. (sometimes lowercase),  the Roman numeral for 10.

  3. Christ.

  4. Christian.

  5. cross.

  6. Electricity.,  reactance.

  7. Slang.,  a ten-dollar bill.

  8. (no longer in official use by the Motion Picture Association of America) a rating for movies with subject matter that is suitable for adults only.

  9. (in Great Britain) a designation for a film recommended for adults only.

  10. a person, thing, agency, factor, etc., of unknown identity.

  11. Chemistry.,  (formerly) xenon.

X

1

symbol

    1. indicating a film that may not be publicly shown to anyone under 18. Since 1982 replaced by symbol 18

    2. ( as modifier )

      an X film

  1. denoting any unknown, unspecified, or variable factor, number, person, or thing

  2. (on letters, cards, etc) denoting a kiss

  3. (on ballot papers, etc) indicating choice

  4. (on examination papers, etc) indicating error

  5. for Christ; Christian

  6. ten See Roman numerals

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

x

2

symbol

  1. commerce banking finance ex

  2. maths the x- axis or a coordinate measured along the x- axis in a Cartesian coordinate system

  3. an algebraic variable

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

x

3

/ ɛks /

noun

  1. the 24th letter and 19th consonant of the modern English alphabet

  2. a speech sound sequence represented by this letter, in English pronounced as ks or gz or, in initial position, z, as in xylophone

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of x1

First recorded in 1840–50
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Word History and Origins

Origin of x1

(sense 6) from the form of the Greek letter khi (Χ), first letter of Khristos Christ

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