Check mark
The check or check mark, checkmark, tickmark or tick is a mark used in many countries, including the English-speaking world, to indicate the concept "yes".
The X mark is also sometimes used for this purpose, but otherwise usually indicates "no", incorrectness, or failure. One of the earliest usages of a check mark as an indication of completion is on ancient Babylonian tablets "where small indentations were sometimes made with a stylus, usually placed at the left of a worker's name, presumably to indicate whether the listed ration has been issued."
As a verb, to check means to add such a mark. Printed forms, printed documents, and computer software commonly include squares in which to place check marks.
International differences
The check mark is a predominant affirmative symbol of convenience in the English-speaking world because of its instant and simple composition. In other language communities, there may be different conventions.It is common in Swedish and Norwegian schools for a to indicate that an answer is incorrect, while "R", from the Swedish rätt or Norwegian riktig, i.e., "correct", is used to indicate that an answer is correct.
In Finnish, ✓ stands for väärin, i.e., "wrong", due to its similarity to a slanted v. The opposite, "correct", is marked with, a slanted vertical line emphasized with two dots.
In Japan, the O mark is used instead of the check mark, and the X or ✓ mark are commonly used for wrong.
In the Netherlands the flourish of approval is used for approving a section or sum.
In German-speaking countries, ✓ is used for “correct” or “done”, but not usually for ticking boxes, which are crossed instead. The opposite of ✓ is ƒ.