x

¹

[ eks ]

verb (used with object)

xed or xd [ekst],xing or xing [ek, -sing].

1. to cross out or mark with or as if with an x (often followed by out ):

   to x out an error.

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

   to x in the candidate of your choice.

X

²

or x

[ eks ]

noun

, plural X's or Xs, x's or 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 for

1. ex ¹( def 1 ).
2. excess.
3. Stock Exchange.
   1. (of stock trading) ex dividend.
   2. (of bond trading) ex interest.
4. experimental.
5. extra.

X

⁴

abbreviation for

1. experimental.
2. extra.
3. extraordinary.

x

⁵

Symbol.

1. an unknown quantity or a variable.
2. 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 .
3. (used at the end of letters, telegrams, etc., to indicate a kiss.)
4. (used to indicate multiplication) times:

   8 × 8=64.

5. (used between figures indicating dimensions) by:

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

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

6. power of magnification:

   a 50x telescope.

7. (used as a signature by an illiterate person.)
8. cross.
9. crossed with.
10. (used to indicate a particular place or point on a map or diagram):

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

11. out of; foaled by:

    a colt by Flag-a-way x Merrylegs.

12. (used to indicate choice, as on a ballot, examination, etc.)
13. (used to indicate an error or incorrect answer, as on a test.)
14. Mathematics. (in Cartesian coordinates) the x-axis.
15. Chess. captures.
16. 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. Compare Roman numerals.
3. Christ.
4. Christian.
5. cross.
6. Electricity. reactance ( def 1 ).
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. Compare A ³( def 10 ), AA ²( def 5 ), U ⁵( def 6 ).
10. a person, thing, agency, factor, etc., of unknown identity.
11. Chemistry. (formerly) xenon.

X

¹

symbol for

1. formerly, in Britain
   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

2. denoting any unknown, unspecified, or variable factor, number, person, or thing
3. (on letters, cards, etc) denoting a kiss
4. (on ballot papers, etc) indicating choice
5. (on examination papers, etc) indicating error
6. for Christ; Christian
7. Roman numeral ten See Roman numerals

x

²

symbol for

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

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

Word History and Origins

Origin of x¹

First recorded in 1840–50

Word History and Origins

Origin of x¹

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

Example Sentences

Letby said: "I can think of two people you could practice on and will help you cover it up x."

From BBC

In 2024, he reunited with Sum 41 to release its final LP, the double album “Heaven :x: Hell.”

From Los Angeles Times

“All your favorite beauty brands are now cuter and more collectible than ever with Mini Brands x Ulta Beauty!” the retailer’s website says.

From Los Angeles Times

In 2024, he reunited with Sum 41 to release their eighth and final project, the pop-punk-metal double album “Heaven :x: Hell.”

From Los Angeles Times

The pair met back in 2019, when the singer posted photos from one such tour and wrote on her Facebook page: "Jeremy lemme be captain at Arthur’s Air Boat Tours x".

From BBC

Related Words

• impress
• seal