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One of the tristimulus values which, with Y and Z, defines coordinates in a three-dimensional color space. Pronounced (in English) big X or cap X.
2003, Charles A. Poynton, Digital Video and HDTV: Algorithms and Interfaces (in English), →ISBN, page 217:
X, Y and Z are pronounced big-X, big-Y, and big-Z, or cap-X, cap-Y, and cap-Z, to distinguish them from little x and little y, to be described in a moment.
Let X represent the forecast traffic flow in 20 years’ time.
2020 January 30, Richard Johns, “Why Physicalism Seems to Be (and Is) Incompatible with Intentionality”, in Acta Analytica, →DOI, pages 7-8:
To know whether a word X is heterological, we must already know what X means. (By contrast, I can know that the word “subdermatoglyphic” has certain syntactic properties—it is six-syllabled, contains the letter “m”, etc.— without having any idea of its meaning.) This indirectness is fine as long as X already has an assigned meaning, for in that case the meaning of “heterological” is ultimately grounded. But when X is the word “heterological”, then we are trying to define “heterological” in terms of itself. We have a closed circle, and a contradictory one, due to the negation operator in the definition.
2025 February 3, Richard Luscombe, “Marco Rubio appoints himself head of USAid as workers locked out of office”, in The Guardian, →ISSN:
Two senior USAid security officials were suspended on Sunday for blocking Doge officials from a restricted area, a day after the agency’s website went offline, and Musk posted to X that USAid was “beyond repair” and needed to be shut down.
Usage notes
Despite officially rebranding to X in July 2023, the social network is still commonly referred to as Twitter.
2019 May 29, Amy Harmon, “Which Box Do You Check? Some States Are Offering a Nonbinary Option”, in The New York Times, archived from the original on 2019-06-08:
So last summer, when the Massachusetts State Legislature became one of the first in the nation to consider a bill to add an “X” option for nonbinary genders to the “M” and “F” on the state driver’s license, El, 17, was less surprised than some at the maneuver that effectively killed it.
Etymology 3
Presumably by abbreviation of the pronunciation of ecstasy.
2003 January 7, “In da Club” (track 5), in Get Rich or Die Tryin', performed by 50 Cent:
You can find me in the club, bottle full of bub'. Look, mami, I got the X if you into takin' drugs.
2008, Stephen King, Graduation Weekend:
Tonight the kids will go out and party down in a more righteous mode. Alcohol and not a few tabs of X will be ingested. Club music will throb through big speakers.
2018 June 8, “Love Druggie”performed by Mendoza:
I'm a love druggie falling for these drug junkies. Come n call on me besides these X parties. It's fucking hard on my body.
1976, Movie Maker, volume 10, numbers 1-6, page 364:
If you go to an X movie you do so knowingly, as does everyone else in the audience. Or if the same thing comes up on TV you can switch over, or, if you wish, enjoy it in relative privacy.
The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.
A letter in the German-based alphabet of Central Franconian.
A letter in the Dutch-based alphabet of Central Franconian.
Usage notes
In the German-based spelling, x is the default spelling for /ks/, but not the most frequent spelling. Following the German cognate or otherwise when there is an intervening morpheme boundary, the spellings chs, cks, ks (possibly also ggs) may be used instead.
In the Dutch-based spelling, /ks/ is usually represented by ks. The letter x occurs only rarely in loanwords.
X is never doubled and preceding vowels are short unless they are themselves doubled (as in English).
The Finnish orthography using the Latin script was based on those of Swedish, German and Latin, and was first used in the mid-16th century. No earlier script is known. See the Wikipedia article on Finnish for more information, and X for information on the development of the glyph itself.
Borrowed from Ancient GreekΧ(Kh, “chi”), which represented /ks/ in the dialects of most of the Greek mainland and Euboea.
Pronunciation
The sound of X was like that of the Greek Ξ(X, “xi”), that is /ks/, although etymologically it represented not only cs (as in lūx, from luc-s, and dīxī, from dic-si), but also gs (as in lēx, from leg-s; rēxī, from reg-si); hs (as in trāxī, from trah-si; vexī, from veh-si); and chs (as in the word onyx, from onych-s, borrowed from the Greek). The
hardening of a softer final (g, h, ch) before s into the с sound, which occurs in the last-mentioned cases, is found also in several roots ending in v and u: nix for niv-s, vīxī for viv-si, connixī for conniv-si, fluxī for fluv-si, from fluō (root fluv-; compare fluvius), struxī for stru-si.
Less frequently x has arisen from the combinations ps and ts: proximus for prop-simus (from prope), nīxus for nit-sus (from nītor), the latter being used along with the collateral form nīsus, as also connīvī with connixī, and mistus (from misceō) with mixtus.
An exchange of the sounds ss or s and x, took place in axis for assis and laxus for lassus. In the later language of the vulgar, the guttural sound in x disappeared, and s or ss was often written for it; as vis for vix, visit for vīxit, unsit for unxit, conflississet for conflixisset, in late inscriptions; hence regularly in Italian, and frequently in the other Romance tongues, the Latin x is represented by s or ss.
By a mere graphic variation, one of the constituent sounds of x is often expressed in inscriptions (but not the earliest) by an additional с or s; as SACXO or SAXSO for saxō; VCXOR or VXSOR for uxor; CONIVNCX or CONIVNXS for conjunx; even both sounds are sometimes thus expressed, VICXSIT for vīxit.
2025 January 28, Jordan Valinsky, “Google Maps cambiará el nombre del golfo de México por el de "golfo de Estados Unidos"”, in CNN en Español:
En una publicación en X, Google explicó que tiene una “práctica de larga data de aplicar cambios de nombre cuando se han actualizado en fuentes gubernamentales oficiales”.