falsetto

/fɔːlˈsɛtoʊ/
adjective
  1. Relating to or produced in a falsetto voice.
    • She gave a falsetto laugh that sounded like a bird's chirp.
    • His falsetto singing style became his trademark.
    • The falsetto notes floated effortlessly over the band.
noun
  1. A method of singing or speaking in a voice that is higher than the singer's or speaker's normal range, especially used by men to produce very high notes.
    • Many pop singers use falsetto to add emotion to their songs.
    • The singer switched to a beautiful falsetto for the chorus.
    • He spoke in a high falsetto to imitate a cartoon character.