An X mark (also known as a cross, x, ex , X, ✕, ☓, ✖, ✗, ✘, etc.) is used to indicate the concept of negation as well as an indicator. Its opposite is often considered to be the check mark or tick.
An X mark (also known as a cross, x, ex , X, ✕, ☓, ✖, ✗, ✘, etc.) is used to indicate the concept of negation as well as an indicator. Its opposite is often considered to be the check mark or tick.