silbido

noun
  1. A whistling sound produced by blowing air through pursed lips or by a similar mechanism. noun
    The silbido of the wind through the trees was both eerie and soothing.
    He let out a silbido to catch his friend's attention across the street.
  2. A high-pitched sound, often sharp and shrill, similar to a whistle. noun
    The kettle emitted a silbido when the water reached boiling point.
    She heard a silbido in her ears after the loud concert.