[{"Bold_text": "noun", "List Items": ["a simultaneous check by two pieces in which the moving of one piece to give check also results in discovering a check by another piece."]}, {"Bold_text": "verb (used with or without object)", "List Items": ["to check twice or again; recheck."]}, {"Bold_text": "noun", "List Items": ["a second examination or verification to assure accuracy, proper functioning, or the like."]}]