X mark

An X mark (also known as a cross, x, ex , X, ✕, ☓, ✖, ✗, ✘, etc.) is used to indicate the concept of negation (for example "no, this has not been verified" or "no, I don't agree") as well as an indicator (for example in election ballot papers or in x marks the spot). Its opposite is often considered to be the check mark or tick (or the O mark used in Japan, Korea and China). In Japanese, the X mark (❌) is called "batsu" (ばつ) and can be expressed by someone by crossing their arms.[1]

It is also used as a replacement for a signature for a person who is blind or illiterate and thus cannot write his or her name.[2] Typically, the writing of an X used for this purpose must be witnessed to be valid.

As a verb, to ex (or x)[3] off/out or to cross off/out means to add such a mark. It is quite common, especially on printed forms and document, for there to be squares in which to place x marks, or interchangeably checks.

It is also traditionally used on maps to indicate locations, most famously on treasure maps.

Unicode

Unicode provides various related symbols, including:

SymbolUnicode Code point (hex)Name
U+2610BALLOT BOX (checkbox)
U+2612BALLOT BOX WITH X (square with cross)
U+2717BALLOT X (cross)
U+2718HEAVY BALLOT X (bold cross)

The mark is generally rendered with a less symmetrical form than the following cross-shaped mathematical symbols:

SymbolUnicode Code point (hex)Name
×U+00D7MULTIPLICATION SIGN (z notation Cartesian product)
U+2573BOX DRAWINGS LIGHT DIAGONAL CROSS
U+2613SALTIRE (St Andrew's Cross)
U+2715MULTIPLICATION X
U+2716HEAVY MULTIPLICATION X
U+274CCROSS MARK
U+274ENEGATIVE SQUARED CROSS MARK
U+2A09N-ARY TIMES OPERATOR
U+2A2FVECTOR OR CROSS PRODUCT
🗙U+1F5D9CANCELLATION X
🗴U+1F5F4BALLOT SCRIPT X
🞩U+1F7A9LIGHT SALTIRE

PunyCode

Not to be confused with the English-alphabet 'X'. X.com is owned by Elon Musk. Punycode is a representation of Unicode with the limited ASCII character subset used for Internet host names.

DomainPunycodeNameRegistered On (WHOIS)
×.comxn--rca.com
╳.comxn--jzh.com
☓.comxn--33h.comHerbert R. Sim's official URL shortcut3 February 2005
✕.comxn--hci.com
✖.comxn--ici.com
❌.comxn--1di.com
❎.comxn--3di.com

See also

Mathematics
Subcultures

Footnotes

  1. "What is Maru Batsu?". genkienglish.net. Retrieved 2016-07-23.
  2. "Notarizing for Blind and Illiterate Individuals". American Association of Notaries. December 2, 2013. Retrieved 5 June 2014.
  3. "Definition of X at Merriam-Webster". Merriam-Webster. Merriam-Webster, Inc. Retrieved 26 February 2014.
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