A warning or alarm, specially a call to arms: "This instrument called television can teach and illuminate, cautioned Edward R. Murrow, but simply to the degree that its operators opt for it.... A Period later ... Murrow's alarum stays as up to date as tonight's development” ( Harry F. Waters).
A danger signal or caution.
A call to arms.
Same as security, the good news is made use of only in feeling 4, except poetically.
a computerized signal (usually a sound) warning of risk
A warning or security, specifically a call to hands: "This tool called television can teach and illuminate, cautioned Edward R. Murrow, but only to the level that its providers choose to use it.... A Period later on ... Murrow's alarum continues to be as up-to-date as tonight's news” ( Harry F. Waters).
A danger sign or warning.
A call to hands.
identical to security, but now made use of just in good sense 4, except poetically.
an automatic sign (usually an audio) caution of risk