alarm

alarm (danh từ) nghĩa là báo động, tín hiệu báo động, lời cảnh báo.

1. A summons to arms, as on the approach of an enemy.Lệnh gọi mọi người cầm vũ khí, chẳng hạn khi kẻ địch đang đến gần.
2. Any sound or information intended to give notice of approaching danger; a warning sound to arouse attention; a warning of danger.Âm thanh hoặc thông tin báo trước nguy hiểm đang đến để mọi người chú ý.
3. A device intended to warn or give notice of approaching danger.
4. A sudden attack; a disturbance.
5. Sudden surprise with fear or terror caused by the apprehension of danger; a feeling of heightened alertness to risk.

• The fire alarm is located high on the wall to prevent tampering.
• His actions caused alarm among all the other people in the store, who hurried to leave.
• The clock radio is a friendlier version of the cold alarm by the bedside.