警号 Traditional form: 警號 Pinyin (reading): jǐnghào Definitions: alarm alert warning signal Characters: 警 - to guard, to watch; alarm, alert 号 - mark, sign; symbol; number; to call, to cry, to roar Traditional characters: 警 - to guard, to watch; alarm, alert 號 - mark, sign; symbol; number; to call, to cry, to roar