octave
UK /ˈɒktɪv/ · US /ˈɑktɪv/ noun, adjective
Forms octaves octaving octaved
- noun (music) An interval of twelve semitones spanning eight degrees of the diatonic scale, representing a doubling or halving in pitch frequency. “The melody jumps up an octave at the beginning, then later drops back down an octave.”
- noun (music) The pitch an octave higher than a given pitch. “The bass starts on a low E, and the tenor comes in on the octave.”
- noun (music) A coupler on an organ which allows the organist to sound the note an octave above the note of the key pressed (cf sub-octave)
- noun (poetry) A poetic stanza consisting of eight lines; usually used as one part of a sonnet.
- noun (fencing) The eighth defensive position, with the sword hand held at waist height, and the tip of the sword out straight at knee level.
- noun (Christianity) The day that is one week after a feast day in the Latin rite of the Catholic Church.
- noun (Christianity) An eight-day period beginning on a feast day in the Latin rite of the Catholic Church.
- noun A small cask of wine, one eighth of a pipe.
- adjective (obsolete) Consisting of eight; eight in number.
Synonyms
Etymology
From Latin octavus (“eighth”). Doublet of octavo, ochava, and oitava.
Webster’s 1913
- noun The eighth day after a church festival, the festival day being included; also, the week following a church festival. "The octaves of Easter." Jer. Taylor.
- noun (a) 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.
- adjective Consisting of eight; eight. Dryden.
Etymology [F., fr. L. octava an eighth, fr. octavus eighth, fr. octo eight. See Eight, and cf. Octavo, Utas.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “octave”, CC BY-SA 4.0. Details