cancelled (Adjective) — (of events) no longer planned or scheduled. ex. "the wedding is definitely cancelled"
cancelled (Verb) — Postpone indefinitely or annul something that was scheduled. ex. "cancel the dinner party"
cancelled (Verb) — Make up for. ex. "His skills cancel his opponent's superior strength"
cancelled (Verb) — Declare null and void; make ineffective. ex. "Cancel the election results"
cancelled (Verb) — Remove or make invisible. ex. "Please cancel my name from your list"
cancelled (Verb) — Make invalid for use. ex. "cancel cheques or tickets"
cancelled (Verb) — (mathematics) simplify by removing a common factor from both the numerator and denominator of a fraction, or from both sides of an equation.