1. a loud ringing sound or bell used to signal alarm or danger
Usage: archaic; literary
2. a state of alarm or urgent warning
Usage: archaic

Examples

• The larum sounded through the castle when the enemy was spotted.
• At the first larum, the townspeople rushed to the town square.
• The night watchman rang the larum to warn of the approaching fire.
• A larum was raised when the ship's hull began to leak.
• The soldiers heard the larum and prepared for battle.