cancel (
http://definr.com/cancel)
n : a notation cancelling a previous sharp or flat [syn:
natural]
v 1: postpone indefinitely or annul something that was scheduled;
"Call off the engagement"; "cancel the dinner party"
[syn:
call off]
2: make up for; "His skills offset his opponent's superior
strength" [syn:
offset,
set off]
3: declare null and void; make ineffective; "Cancel the
election results"; "strike down a law" [syn:
strike down]
4: remove or make invisible; "Please delete my name from your
list" [syn:
delete]
5: of cheques or tickets [syn:
invalidate]