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."(The addition of quotations indicative of this usage is being sought:)"
10.VerbTo cease to provide financial or moral support to (someone deemed unacceptable); to disinvite. Compare cancel culture.
11.NounA cancellation.
A control message posted to Usenet that serves to cancel a previously posted message.
12.NounA control message posted to Usenet that serves to cancel a previously posted message.
13.NounAn enclosure; a boundary; a limit.
14.NounThe suppression on striking out of matter in type, or of a printed page or pages.
15.NounThe page thus suppressed.
16.NounThe page that replaces it.