Definitions
1.verbTo cross out something with lines etc.
2.verbTo invalidate or annul something."He cancelled his order on their website."
3.verbTo mark something (such as a used postage stamp) so that it can't be reused."This machine cancels the letters that have a valid zip code."
4.verbTo offset or equalize something."The corrective feedback mechanism cancels out the noise."
5.verbTo remove a common factor from both the numerator and denominator of a fraction, or from both sides of an equation.
6.verbTo stop production of a programme.
7.verbTo suppress or omit; to strike out, as matter in type.
8.verbTo shut out, as with a railing or with latticework; to exclude.
9.verbTo kill.
10.verbTo cease to provide financial or moral support to (someone deemed unacceptable). Compare cancel culture.
11.adjectiveNo longer planned or scheduled."The cancelled show would have drawn 5,000 fans."
12.adjective(of a mail item) Marked over the stamp, to show that the stamp has been used.