अर्थ : Fear resulting from the awareness of danger.
समानार्थी : consternation, dismay
अर्थ : A device that signals the occurrence of some undesirable event.
समानार्थी : alarm system, warning device
अर्थ : An automatic signal (usually a sound) warning of danger.
समानार्थी : alarum, alert, warning signal
अर्थ : A clock that wakes a sleeper at some preset time.
समानार्थी : alarm clock