octave
US /ˈɑːk.tɪv/
UK /ˈɑːk.tɪv/

1.
octava
a series of eight notes occupying the interval between two notes, one having twice or half the frequency of vibration of the other.
:
•
The singer hit a high octave with ease.
El cantante alcanzó una octava alta con facilidad.
•
The piano has a range of over seven octaves.
El piano tiene un rango de más de siete octavas.
2.
octava, grupo de ocho
a group or series of eight.
:
•
The poem was written in octaves, with each stanza having eight lines.
El poema fue escrito en octavas, con cada estrofa de ocho versos.
•
The architect designed the building with an octave of pillars.
El arquitecto diseñó el edificio con una octava de pilares.