- The eighth tone in the scale; the interval between one and eight of the scale or any interval of equal length; an interval of five tones and two semitones.
- (n.) The eighth day after a church festival, the festival day being included; also, the week following a church festival.
- (n.) The whole diatonic scale itself.
- (a.) Consisting of eight; eight.
- (n.) A small cask of wine, the eighth part of a pipe.
- (n.) The first two stanzas of a sonnet, consisting of four verses each; a stanza of eight lines.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). octave. Retrieved September 28, 2026, from http://smartdefine.org/octave/definitions/2038285 |
| Chicago | Webster's. 2011. "octave" http://smartdefine.org/octave/definitions/2038285 (accessed September 28, 2026). |
| Harvard | Webster's 2011, octave, Smart Define, viewed 28 September, 2026, <http://smartdefine.org/octave/definitions/2038285>. |
| MLA | Webster's. "octave" 27 May 2011. Web. 28 September 2026. <http://smartdefine.org/octave/definitions/2038285> |