[{"Bold_text": "verb (used without object)", "List Items": ["to make a clear musical sound, a series of such sounds, or a high-pitched, warbling sound by the forcible expulsion of the breath through a small opening formed by contracting the lips, or through the teeth, with the aid of the tongue.", "to make such a sound or series of sounds otherwise, as by blowing on some device.", "to emit similar sounds from the mouth, as birds do.", "(of a device) to produce a similar sound when actuated by steam or the like:This teakettle whistles when it boils.", "to move, go, pass, etc., with a whistling or whizzing sound, as a bullet or the wind."]}, {"Bold_text": "verb (used with object)", "List Items": ["to produce by whistling:to whistle a tune.", "to call, direct, or signal by or as by whistling:He whistled his dog over.", "to send with a whistling or whizzing sound."]}, {"Bold_text": "noun", "List Items": ["an instrument for producing whistling sounds by means of the breath, steam, etc., as a small wooden or tin tube, a pipe, or a similar device with an air chamber containing a small ball that oscillates when air is forced through an opening, producing a high-pitched, warbling tone.", "a sound produced by whistling:a prolonged whistle of astonishment.", "a simple fipple flute fipple flute."]}, {"Bold_text": "verb phrase", "List Items": ["to demand or expect without success:After promising to pay, he told us we could whistle for our money."]}]