[{"Bold_text": "noun", "List Items": ["any of various devices, usually electronic, by which speech, music, etc., can be intensified and made audible throughout a room, hall, or the like.", "Audio.a device for transforming electric signals into audible sound, most frequently used to reproduce speech and music. speaker(def4) speaker(def4).", "a device for transforming electric signals into audible sound, most frequently used to reproduce speech and music.", "speaker(def4) speaker(def4)."]}]