X.

prefixattested in dialogue

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

prefix

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

x · The twenty-fourth letter of the English alphabet, called ex…X · An unknown quantity or unknown value.X-ray · A ray of short-wavelength electromagnetic radiation usually…

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

Xander · A diminutive of the male given name Alexander, from Ancient…Xavier · A male given name from Spanish [in turn from Basque].Xena · A female given name from Ancient Greek of modern usage.

The neighbouring pages — Alphabetical order follows the rules of the language, not byte values: an accent decides only between two otherwise identical words, and Spanish files Ñ as a letter of its own.