x

X

Use x in a sentence

The letter X.

noun

X is the 24th letter of the English alphabet.

An example of X is the letter that ends the word "flex."

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x

or X

noun

pl.

the twenty-fourth letter of the English alphabet: from a western form of the Greek alphabet
any of the speech sounds that this letter represents, as, in English, the (ks) of lax, (gz) of exact, (k?) of anxious, (g?) of luxurious, or (z) of xylophone
a type or impression for x or X
the twenty-fourth in a sequence or group
an object shaped like

of x or X
twenty-fourth in a sequence or group
shaped like

transitive verb

x-ed or x'd, x-ing or x'ing

to indicate (one's choice or answer) by or as by marking with an
to delete or cancel (written or printed matter) with or as with one or more 's: usually used with out

one's choice or answer (on a ballot, test, etc.)

the first of a set of unknown quantities, y usually being second
a variable
an abscissa

extra

by (in indicating dimensions): 3 ft x 4 ft
the power of magnification (in optical instruments)
Math. times

X

a mark shaped like an used:
1. to represent the signature of a person who cannot write
2. to indicate a particular point on a map, diagram, etc.
3. as a symbol for a kiss in letters, etc.
4. to indicate the degree of fineness of flour, sugar, etc.
the Roman numeral 10: XX = 20, XXX = 30: X before a greater Roman numeral expresses a number 10 less than that numeral (e.g., XC = 90): with a superior bar (?), 10,000
a person or thing unknown or unrevealed
a former film rating meaning that no one under the age of seventeen is to be admitted

X Idioms

X's and O's

Informal the basic elements of a specified field of work, knowledge, etc.; often, specif., the plays and strategies used in a particular sport

X

Origin of X
see XP
Christ: used also in comb., as in Xmas
Genetics crossed with
extra
Elec. reactance

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x

or X

noun

pl. x's, or X's also xs or Xs

The 24th letter of the modern English alphabet.
Any of the speech sounds represented by the letter x.
The 24th in a series.
Something shaped like the letter X.
A mark inscribed to represent the signature of one who is unable to sign one's name.
An unknown or unnamed factor, thing, or person.

transitive verb

x'd, x'ing, x's, or X'd X'ing X's

To mark or sign with an X.
To delete, cancel, or obliterate with a series of X's. Often used with out.

roman numerals, Sundial

Sundials indicate the time of day when a pointer casts a shadow onto a calibrated dial.

The symbol for abscissa

X

noun

A movie rating indicating that admission will not be granted to anyone under the age of 17.

X

The symbol for reactance
also x The symbol for the Roman numeral 10.
A symbol for the word cross. Used in combination, as in Xing for crossing or motoX for motocross.

X

abbreviation

Christ (Greek &KHgr;&rgr;&igr;&sgr;&tgr;&ogr;&sfgr;, Khristos )
Christian
or x ex
ex dividend
or x experimental
extra
a. extreme
b. extremely

THE AMERICAN HERITAGE® DICTIONARY OF THE ENGLISH LANGUAGE, FIFTH EDITION by the Editors of the American Heritage Dictionaries. Copyright © 2016, 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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Letter

(lower case, upper case X)

The twenty-fourth letter of the English alphabet, called ex and written in the Latin script.

Abbreviations

intersex or transgender (passports and identification documents)

Conjunction

(fandom slang) Used between the names of two characters to denote a ship, particularly in anime, manga, and video games.

Suffix

plural

Forms plurals of ‘u’-terminal nouns (and, very rarely, some others), chiefly of French origin.

Origin

From the French plural suffix -x.

Suffix

(slang) Used to replace a -ks- sound, as in hax (hacks), punx (punks), pix (pics).

Origin

X is prototypically pronounced [ks] in English; it therefore serves as a convenient shorthand for the digraphs (cs, ks, etc.) or trigraphs (cks etc.) that would otherwise represent that consonant cluster.

Abbreviations

Alternative form of X.

Prefix

prefix used for CCITT-ratified (UN) international telecom standards on e-mail

Symbol

(computing) The ASCII control character cancel in caret notation.

English Wiktionary. Available under CC-BY-SA license.

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x - Computer Definition

In mathematics, the symbol for an unknown quantity, person, factor, or thing. X is the first in a set of two or three unknowns comprising x, y, and z. In telecommunications, for example, xDSL refers to any of a group of Digital Subscriber Line services. See also x-axis, xDSL, y, and z.
In mathematics, times. For example, 3

X

The symbol for reactance. See reactance.
X. The X series of ITU-T Recommendations. The X series addresses data networks, open systems communication, and security. See X Series.

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(1) (eXit) To exit, close or delete. See X button.

(2) (heX) In programming, a symbol used to identify a hexadecimal number. For example, "0x0A" and "\x0A" specify the hex number 0A. See also X Window and MDI-X port.

(3) (times the original) A performance rating for optical drives, based on rotation speed (RPM) of the platter. Each "x" means "times the speed of the first specification," thus 10x means 10 times as fast as the original drive. See CD-ROM drives and DVD drives.

(4) (x-) The prefix used to describe a MIME type. For example, x-pdf and x-gzip refer to PDF and Gnu ZIP file formats, respectively. See MIME type.

(5) A prefix for cross; for example, x-platform means "cross-platform." See cross platform.

(6) (Mac OS X) X is the Roman Numeral for 10; thus OS X means "OS 10." See Mac OS X.

(7) (eXperience) See UX designer and user experience.

X++

The programming language in the Axapta development environment. See Microsoft Dynamics AX.

Computer Desktop Encyclopedia THIS DEFINITION IS FOR PERSONAL USE ONLY All other reproduction is strictly prohibited without permission from the publisher. © 1981-2017 The Computer Language Company Inc. All rights reserved.

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x - Legal Definition

n

A mark or indication utilized as a signature by an illiterate person who is unable to sign his or her name.

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x

X

X

x

X

X

X

x - Computer Definition

X

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x - Legal Definition

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