decide or announce that (a planned event) will not take place

he was forced to cancel his visit

(of a factor or circumstance) neutralize or negate the force or effect of (another)

the shipping costs cancelled out any savings

the electric fields may cancel each other out

publicly boycott or withdraw support from (a person, organization, etc.) for promoting beliefs that are regarded as socially unacceptable

fans on social media are torn over whether to support or cancel him

mark, pierce, or tear (a ticket or stamp) to show that it has been used or invalidated

cancelling stamps on registered mail