To cross and deface, as the lines of a writing, or as a word or figure; to mark out by a cross line; to blot out or obliterate.

Also known as Cancellation. A marking intended to show a stamp has been used and is no longer valid as postage. Modern cancels usually include the name of the original mailing location or a nearby sorting facility and the date of mailing. Most cancellations also include a section of lines, bars, text or a design that prints upon the postage stamp to invalidate it.

a mark meant to simply deface the stamp and does not carry other information

The portion of a postmark which defaces or "kills" the stamp. Often looselyused interchangeably with "postmark."

cancelar—One usage of this cognate is the reverse of what you may be used to. When paying a bill, the paperwork will be stamped with a flourish and the enthusiastic announcement -¡está cancelada!- Not to worry. This means that the debt has been canceled, not your prepaid tour reservation or the repair work to get your rental car back on the road.