[{"Bold_text": "noun", "List Items": ["a person or thing that damps or depresses:His glum mood put a damper on their party.", "a movable plate for regulating the draft in a stove, furnace, etc.", "Music.a device in stringed keyboard instruments to deaden the vibration of the strings.the mute of a brass instrument, as a horn.", "a device in stringed keyboard instruments to deaden the vibration of the strings.", "the mute of a brass instrument, as a horn.", "Electricity.an attachment to keep the indicator of a measuring instrument from oscillating excessively, as a set of vanes in a fluid or a short-circuited winding in a magnetic field.", "Machinery.a shock absorber.", "Australian.a round, flat cake made of flour and water, and cooked over a campfire.the dough for such cakes.", "a round, flat cake made of flour and water, and cooked over a campfire.", "the dough for such cakes."]}]