Define warning. warning synonyms, warning pronunciation, warning translation, English dictionary definition of warning. n. 1. A statement telling of or an indication providing evidence of impending danger, difficulty, or misfortune: The government issued a warning about...
WARNING meaning: 1 : something (such as an action or a statement) that tells someone about possible danger or trouble; 2 : a statement that tells a person that bad or wrong behavior will be punished if it happens again