[{"Bold_text": "verb (used with object)", "List Items": ["to regulate by or adjust to a certain measure or proportion; soften; tone down.", "to alter or adapt (the voice) according to the circumstances, one's listener, etc.Synonyms: control , temper", "Music.to attune to a certain pitch or key.to vary the volume of (tone).", "to attune to a certain pitch or key.", "to vary the volume of (tone).", "Telecommunications.to cause the amplitude, frequency, phase, or intensity of (a carrier wave) to vary in accordance with a sound wave or other signal, the frequency of the signal wave usually being very much lower than that of the carrier."]}, {"Bold_text": "verb (used without object)", "List Items": ["Telecommunications.to modulate a carrier wave.Citizens Band Radio Slang.to talk; visit:Enjoyed modulating with you.", "to modulate a carrier wave.", "Citizens Band Radio Slang.to talk; visit:Enjoyed modulating with you.", "Music.to pass from one key to another:to modulate abruptly from A to B flat."]}]