Cách sử dụng
Countermand means to cancel or reverse an order or decision that has already been made. It is often used in official or legal situations where one person has the authority to give orders or instructions to others. For example, a police chief might countermand an officer's order to make an arrest, or a boss might countermand an employee's request for time off. In everyday conversation, countermand is not a common word, but it can be useful when talking about situations where decisions are being made and changed.