[{"Bold_text": "noun", "List Items": ["a repeated, jerky movement; bob.", "a momentary fumbling or juggling of a batted or thrown baseball.", "an error; mistake.", "a small ball of fabric usually used decoratively, as in a fringe or other trimming:a sweater with a line of bobbles up the sleeves."]}, {"Bold_text": "verb (used with object)", "List Items": ["to juggle or fumble (a batted or thrown baseball) momentarily, usually resulting in an error."]}]