Similar words: stave, tavern, stave off, octagon, octagonal, octahedron, atavism, atavistic. Meaning: ['ɑktɪv /'ɒk-] 
n. 1. a feast day and the seven days following it 2. a musical interval of eight tones 3. a rhythmic group of eight lines of verse.
n. 1. a feast day and the seven days following it 2. a musical interval of eight tones 3. a rhythmic group of eight lines of verse. 
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1. These notes are an octave apart.
2. Her voice went down an octave.
3. Sing those bars an octave lower.
4. Can you span an octave on the piano?
5. He's singing an octave lower than the rest of us.
6. A robin's song spans less than an octave.
7. Ottovina, octave, eight: translation was something like love.
8. The B flat lies an octave below the bass clarinet.
9. The bottom octave and a half of its compass is the best part of its range for everyday use.
10. They produce the octave above the natural note of the string and are indicated by the sign O placed above the note.
11. The octave combinations are practically confined, in the small orchestra, to 1. Double bass and bassoon. 2.
12. Fig 3 illustrates a typical three octave fingering of this scale,[sentencedict.com/octave.html] which should be played using alternate picking throughout.
13. The octave combinations are practically confined, in the small orchestra, to 1.
14. By the time the star is sighted, octave passages have taken over and the excitement reaches fever pitch.
15. Stockwell, with his voice jacked up an octave, does a passable homage to Joe Flynn, the original Binghampton.
16. The violins may be doubled at the higher octave by a flute or two with very good effect.
17. The horn in C sounded an octave lower than the written note.
18. A note or tone in the alt octave.
19. The child's hands are too small to stretch to an octave on the piano.
20. The pitch shifter is particularly impressive, offering a full octave above or below in semitone steps.
21. More brilliance still would be given to the tune if the trumpets doubled the trombone at the octave above.
22. The bass may however, always be doubled at the octave below if desired.
23. Where the confusion seems to stem from is the fact that guitar music sounds an octave lower than concert pitch.
24. What's more, Bill had a voice that was nearly an octave higher than Ben's.
25. Its high register gives brilliance and point when doubling at the octave phrases allotted to other wind instruments or to the violins.
26. The most usual form is canon at the unison,(sentencedict.com) or octave.
27. The flute adds brightness to oboe, clarinet, bassoon, and horn when it doubles them at the octave.
28. I just heard this fabulous laugh, like a whole octave, top to bottom.
29. The bassoons are at their most powerful in their bottom octave or so.
30. Rather, the carrier frequency swoops up or down about an octave.
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