Ключевые слова: abandoning, abandonment, abolition, abort, abrogation, annulment, break, business, cancel, canceling, cancellation, cancelled, cancelled events, cancelled show, change, close, communication, concept, conceptual, deactivation, deletion, dissolution, education, elimination, invalidation, message, nullification, off, planning, postpone, postponed, program, quit, recall, recalling, remove, repeal, reset, retirement, retraction, reversal, revocation, shutdown, sign, stop, symbol, undoing,