A mark that replaces another mark.

(transitive) To mark again.

To reduce the price of. / To write a memorandum about. / To subtract marks or points from, for an error. / To write down.

(engineering) A symbol used to mark the center of a circle or partial circle on an engineering drawing.

(Canada, US, Philippines) A mark (✓) made to indicate agreement, correctness or acknowledgement.

plural of check mark

(law) A trademark denoting the source of a service rather than a product.

plural of service mark

plural of beauty-mark

plural of gas mark