[{"Bold_text": "verb (used with object)", "List Items": ["to bring or draw to a common center or point of union; converge; direct toward one point; focus:to concentrate one's attention on a problem; to concentrate the rays of the sun with a lens.Antonyms: disperse , dissipate", "to put or bring into a single place, group, etc.:The nation's wealth had been concentrated in a few families.", "to intensify; make denser, stronger, or purer, especially by the removal or reduction of liquid:to concentrate fruit juice; to concentrate a sauce by boiling it down.", "Mining.to separate (metal or ) from rock, sand, etc., so as to improve the quality of the valuable portion."]}, {"Bold_text": "verb (used without object)", "List Items": ["to bring all efforts, faculties, activities, etc., to bear on thing or activity (often followed byonorupon):to concentrate on solving a problem.Antonyms: diverge", "to come to or toward a common center; converge; collect:The population concentrated in one part of the city.", "to become more intense, stronger, or purer."]}, {"Bold_text": "noun", "List Items": ["a concentrated form of something; a product of concentration :a juice concentrate."]}]