octave
noun/ˈɒktɪv/
/ˈɑːktɪv/
(music)- the difference (the interval) between the first and last notes in a series of eight notes on a scale
- to play an octave higher
- Orbison's vocal range spanned three octaves.
Word OriginMiddle English (originally referring to a period of eight days beginning with the day of a Church festival): via Old French from Latin octava dies ‘eighth day’.
Check pronunciation:
octave