[{"Bold_text": "noun", "List Items": ["a small mallet used by the presiding officer of a meeting, a judge, etc., usually to signal for attention or .", "a similar mallet used by an auctioneer to indicate acceptance of the final bid.", "Masonry. kevel2 ."]}, {"Bold_text": "verb (used with object)", "List Items": ["to chair (a legislative session, convention, meeting, etc.).", "(of a presiding officer)to request or maintain (order at a meeting) by striking a gavel.to begin or put into effect (a legislative session, motion, etc.) by striking a gavel.", "to request or maintain (order at a meeting) by striking a gavel.", "to begin or put into effect (a legislative session, motion, etc.) by striking a gavel."]}, {"Bold_text": "noun", "List Items": ["feudal rent or tribute."]}]