cancel
verb [ I or T ]
uk/ˈkænsəl/ us-ll- | US usually -l-to decide that something that has been arranged will not happen:
cancel a flight/meeting/trip When a flight is cancelled, an airline is obliged to provide alternative transport or a refund.
"I canceled at the last minute,'' he said.
LAW
to officially end a legal agreement or responsibility:
cancel a contract/debt/obligation Leaders pledged to cancel the debt of the world’s most indebted countries.
LAW, BANKING
to mark a cheque or other document to show that it has been used and cannot be used again:
Consumers who need a canceled check to prove that they made a payment can ask for a copy.
COMMERCE
to stop an order for goods or services that you no longer want or need:
Protesters are urging the government to cancel the order for the new weapons system.
Phrasal verb
cancel sth out