[{"Bold_text": "verb (used without object)", "List Items": ["to make a quick, sharp sound, or a succession of such sounds, as by striking or cracking:The loom clacked busily under her expert hands.", "to talk rapidly and continually or with sharpness and abruptness; chatter.", "to cluck or cackle."]}, {"Bold_text": "verb (used with object)", "List Items": ["to utter by clacking.", "to cause to clack:He clacked the cup against the saucer."]}, {"Bold_text": "noun", "List Items": ["a clacking sound.", "something that clacks, as a rattle.", "rapid, continual talk; chatter."]}]