[{"Bold_text": "noun", "List Items": ["the sound made by a bell rung slowly, especially for a death or a funeral.", "a sound or sign announcing the death of a person or the end, extinction, failure, etc., of something:the knell of parting day.", "any mournful sound."]}, {"Bold_text": "verb (used without object)", "List Items": ["to sound, as a bell, especially a funeral bell.", "to give forth a mournful, ominous, or warning sound."]}, {"Bold_text": "verb (used with object)", "List Items": ["to proclaim or summon by, or as if by, a bell."]}]