X — Meaning, Definition & Synonyms

noun verb abbreviation symbol adjective /ˈeks/

Meaning & Definition of X

X (noun)

  1. the 24th letter of the English alphabet
  2. a graphic representation of this letter
  3. a speech counterpart of orthographic x

X (verb)

  1. to mark with an x
  2. to cancel or obliterate with a series of x's —usually used with out

X (abbreviation)

  1. cross
  2. ex
  3. experimental
  4. extra

X (symbol)

  1. times
  2. by —used in measurements
  3. by —used in nonmathematical constructions

X (adjective)

  1. of such a nature that admission is denied to persons under a specified age (such as 17) —used before the adoption of NC-17

Word Forms of X

Inflections: x's, xs, X's, Xs, x-ed, x'd, xed, x-ing, x'ing

Origin & Etymology of X

First known use: before 12th century

Words & Phrases Containing X

X-Acto, x-axis, X band, X chromosome, x-coordinate

Frequently Asked Questions about X

What does "X" mean?

"X" means the 24th letter of the English alphabet. As an a noun, a verb, an abbreviation, a symbol and an adjective, it is defined as: the 24th letter of the English alphabet. It has 13 distinct senses.

Is "X" a noun, verb, or adjective?

"X" can be used as a noun, a verb, an abbreviation, a symbol and an adjective, depending on the context.

How do you pronounce "X"?

"X" is pronounced /ˈeks/.

What is the origin of the word "X"?

First known use: before 12th century.

What does "X" mean as a noun?

As a noun, "X" means: the 24th letter of the English alphabet; a graphic representation of this letter; a speech counterpart of orthographic x.

What does "X" mean as a verb?

As a verb, "X" means: to mark with an x; to cancel or obliterate with a series of x's —usually used with out.

What does "X" mean as an abbreviation?

As an abbreviation, "X" means: cross; ex; experimental.

What does "X" mean as a symbol?

As a symbol, "X" means: times; by —used in measurements; by —used in nonmathematical constructions.