Alarm (תּרוּעָה, teruah', a loud sound or shout, as often), a broken quivering sound of the silver trumpets of the Hebrew, warning them in their journey in the wilderness (Nu 10:5-6; comp. Le 23:24; Le 25:9;
29:1). When the people or the rulers were to be assembled together, the trumpet was blown softly; when the camps were to move forward, or the people to march to war, it was sounded with a deeper note (Jahn, Bibl. Archaeol. § 95, 5). Hence a warnote or call to arms, or other public exigency in general (Jer 4:19; Jer 49:2; Zep 1:16). SEE TRUMPET.