[{"Bold_text": "verb (used with object)", "List Items": ["to annoy by persistent faultfinding, complaints, or demands.Synonyms: vex , irritate , hector , harass , pester", "to keep in a state of troubled awareness or anxiety, as a recurrent pain or problem:She had certain misgivings that nagged her."]}, {"Bold_text": "verb (used without object)", "List Items": ["to find fault or complain in an irritating, wearisome, or relentless manner (often followed byat):If they start nagging at each other, I'm going home.", "to cause pain, discomfort, distress, depression, etc. (often followed byat):This headache has been nagging at me all day."]}, {"Bold_text": "noun", "List Items": ["Also .a person who nags, especially habitually.", "an act or instance of nagging:His constant nagging finally got the best of me and I lost my temper."]}, {"Bold_text": "noun", "List Items": ["an old, inferior, or worthless horse.", "Slang.any horse, especially a racehorse.", "a small riding horse or pony."]}]