chalkmark, check mark

Chalkmarks on Stone

chalk mark 用粉筆做記號

A tick (known as a check mark or check in American English) is a mark (✓, ✔, ☑, etc.) used to indicate the concept "yes", for example "yes; this has been verified" or, "yes; that is the correct answer". Its opposite is the x mark, although the x mark can also be positive (most notably on election ballot papers).

As a verb, to tick (off) or to check (off) means to add such a mark. It is quite common, especially on printed forms, printed documents, and computers (see check box), for there to be squares in which to place ticks.

In some European countries^{[citation needed]} (e.g., Finland and Sweden), the tick can be used as an error mark and indicates "no" rather than "yes". In East Asia, an "O Mark" (in the appearance of a circle, unicode symbol "◯"), also known as "丸印" marujirushi, is used instead of a tick to mean "yes".

A rainbow-colored tick was also used for the Amiga logo during the Commodore era of the Amiga (1985–1994).

Unicode

Unicode provides various related symbols, including:

Symbol	Unicode Codepoint (Hex)	Name
✓	U+2713	CHECK MARK (tick)
✔	U+2714	HEAVY CHECK MARK (bold tick)
☐	U+2610	BALLOT BOX (square)
☑	U+2611	BALLOT BOX WITH CHECK (square with tick)

See also

• X mark
• Tally marks