[{"Bold_text": "verb (used with object)", "List Items": ["to give notice, advice, or intimation to (a person, group, etc.) of danger, impending evil, possible harm, or anything else unfavorable:They warned him of a plot against him. She was warned that her life was in danger.Synonyms: forewarn", "to urge or advise to be careful; caution:to warn a careless driver.", "to admonish or exhort, as to action or conduct:She warned her employees to be on time.", "to notify, advise, or inform:to warn a person of an intended visit.", "to give notice to (a person, group, etc.) to go, keep at a distance, etc. (often followed byaway, off,etc.):A sign warns trespassers off the grounds. A marker warned boats away from the dock.", "to give authoritative or formal notice to (someone); order; summon:to warn a person to appear in court."]}, {"Bold_text": "verb (used without object)", "List Items": ["to give a warning; caution:to warn of further disasters."]}]