X mark

X mark
An x mark within a box

An x mark (also known as a cross, x, ex, exmark or into mark[1]) is a mark (x, ×, X, , , , , , etc.) used to indicate the concept of negation (for example "no, this has not been verified" or "no, I don't agree") as well as affirmation (for example in election ballot papers or in x marks the spot). It is often used opposite the tick or check mark (or the O mark used in Japan.)

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

As a verb, to ex 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. While it is more common in America[citation needed] and Germany for people to check a square box with a cross than a tick, in some countries a tick (✓) or even a v mark[citation needed] is used.

Unicode

Unicode provides various related symbols, including:

Symbol Unicode Codepoint (Hex) Name
U+2717 BALLOT X (cross)
U+2718 HEAVY BALLOT X (bold cross)
U+2610 BALLOT BOX (square)
U+2612 BALLOT BOX WITH X (square with cross)

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

Symbol Unicode Codepoint (Hex) Name
× U+00D7 multiplication sign
U+2A2F cross product also known as Gibbs vector product

See also

Mathematics

Footnotes

  1. ^ Due to its similarity to the multiplication sign.

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