[{"Bold_text": "verb (used with object)", "List Items": ["to attack or batter with artillery fire.", "to attack with bombs.", "to assail vigorously:to bombard the speaker with questions.Synonyms: besiege , hound , harass , beset", "Physics.to direct high energy particles or radiations against:to bombard a nucleus."]}, {"Bold_text": "noun", "List Items": ["the earliest kind of cannon, originally throwing stone balls.", "Nautical. bomb ketch bomb ketch.", "an English leather tankard of the 18th century and earlier, similar to but larger than a blackjack.", "Obsolete.a leather jug."]}]