diapason

/daษชษ™หˆpeษชsษ™n/

IPA: /D AY1 AH0 P AE1 S AH0 N/

noun
  1. 1

    The musical octave.

  2. 2

    (by extension) The range or scope of something, especially of notes in a scale, or of a particular musical instrument.

  3. 3

    A tonal grouping of the flue pipes of a pipe organ.

Synonyms

Source: https://en.wiktionary.org/wiki/diapason