A more thorough explanation:

Cancellation is the act of making a document void by destroying it, defacing it, or making lines through it. In contract law, cancellation occurs when one party ends a contract due to the other party's breach. It is a formal nullification of a legal obligation.

• When you cancel a flight reservation, you are making it void and no longer valid.
• If a company breaches a contract by not delivering goods on time, the other party may cancel the contract.
• If you write a check and then decide not to use it, you can cancel it by tearing it up or writing "void" on it.

These examples illustrate how cancellation involves making something no longer valid or binding. In each case, the original document or agreement is destroyed or nullified in some way.