[ˈɒktɪv], (Noun)

Definitions:
- a series of eight notes occupying the interval between (and including) two notes, one having twice or half the frequency of vibration of the other

- a group or stanza of eight lines; an octet

- the seventh day after a Church festival

- the last of eight parrying positions

- a wine cask holding an eighth of a pipe


Phrases:

Origin:
late Middle English (in octave): via Old French from Latin octava dies ‘eighth day’