to decide or announce that a planned event will not take place; call off: to cancel a meeting.

to decide or announce that a planned event will not take place; call off: to cancel a meeting.

to mark or perforate (a postage stamp, admission ticket, etc.) so as to render invalid for reuse.

to neutralize; counterbalance; compensate for: His sincere apology canceled his sarcastic remark.

Accounting . to close (an account) by crediting or paying all outstanding charges: He plans to cancel his account at the department store. to eliminate or offset (a debit, credit, etc.) with an entry for an equal amount on the opposite side of a ledger, as when a payment is received on a debt.

Mathematics . to eliminate by striking out a factor common to both the denominator and numerator of a fraction, equivalent terms on opposite sides of an equation, etc.

to cross out (words, letters, etc.) by drawing a line over the item.