A check mark, checkmark or tick is a mark (✓, ✔, etc.) used (primarily in the English speaking world) to indicate the concept “yes” (e.g. “yes; this has been verified”, “yes; that is the correct answer”, “yes; this has been completed”, or “yes; this [item or option] applies to me”). The x mark is also sometimes used for this purpose (most notably on election ballot papers, e.g. in the United Kingdom), but otherwise usually indicates “no”, incorrectness, or failure. As a verb, to check (off) or tick (off), means to add such a mark. Printed forms, printed documents, and computer software (see checkbox...

An X mark (also known as a cross, x, ex and ex mark 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 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 Taiwan). In Japanese, the X mark (❌) is called "batsu" (ばつ) and can be expressed by someone by crossing their arms. In some areas it's common for people to check a square box with a cross rather than a check...