octave
nounfeminine/ojˈta.vɐ/medium
oi·ta·va
Definitions
1A period of eight days beginning on a religious feast.
The octave of Christmas is a time of continued celebration.
The feast day marks the start of the octave.
Common collocations
octave of Christmasoctave of Easter
2A musical interval spanning eight diatonic degrees.
She sang the final note an octave higher.
The bass plays the same melody an octave lower.
Common collocations
perfect octaveascending octave
Etymology
Do latim 'octavus'.