octave
US /ˈɑːk.tɪv/
UK /ˈɑːk.tɪv/

1.
oitava
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.
O cantor atingiu uma oitava alta com facilidade.
•
The piano has a range of over seven octaves.
O piano tem um alcance de mais de sete oitavas.
2.
oitava, grupo de oito
a group or series of eight.
:
•
The poem was written in octaves, with each stanza having eight lines.
O poema foi escrito em oitavas, com cada estrofe tendo oito versos.
•
The architect designed the building with an octave of pillars.
O arquiteto projetou o edifício com uma oitava de pilares.