Check marks are symbols used to indicate that something has been verified or approved. They are also known as tick marks, checkboxes, or simply checks. The term 'check mark' is often used interchangeably with the terms 'amounts', 'ticks', 'SPOT', and 'cees'. Amounts refers to the number of check marks used, ticks refers to the shape of the check mark, SPOT refers to the area where the check mark is placed, and cees refers to the letter C which is often used to represent a check mark.