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octave

octave (eccl.) formerly pl., eighth day after a festival, period of eight days beginning with the festival XIV; (pros.) group of eight lines of verse XVI; (mus.) note eight diatonic degrees above a given note XVII; interval, or series of notes. between a note and its octave; (fencing) XVIII; group of eight XIX. — (O)F. octave, superseding semi-pop. oitieve, utave — L. octāva, fem. of octāvus eighth, f. octō EIGHT.
So octavo size of the page of a book for which the sheets are so folded that each leaf is one-eighth of a full sheet XVII, earlier in o. XVI ‘in an eighth’; abl. of L. octāvus. octet(te) (mus.) composition for eight instruments or voices; (pros.) group of eight lines. XIX. — It. ottetto, or its deriv. G. oktett; f. otto eight.

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octave

oc·tave / ˈäktəv; ˈäkˌtāv/ • n. 1. Mus. 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. ∎  the interval between these two notes. ∎  each of the two notes at the extremes of this interval. ∎  these two notes sounding together. 2. a poem or stanza of eight lines; an octet. 3. the eighth day after a church festival, inclusive of the day of the festival. ∎  a period of eight days beginning with the day of such a festival. 4. Fencing the last of eight standard parrying positions.

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octave

octave (ŏk´tĬv) [Lat.,=eighth], in music, the perfect interval between the 1st and 8th tones of the diatonic scale. The upper note of a perfect octave has a frequency of vibration twice that of the lower, and in modern Western notation the two have the same letter name. The octave is the first overtone (see harmonic). The range of the male voice is roughly an octave below that of the female; men and women supposedly singing in unison actually sing in octaves.

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octave

octave. Interval of 8 notes, counting bottom and top notes. Notes an octave apart have same letter-names. Interval from, say, D to next D above is perfect octave; from D up to D♭ and from D up to D♯ are diminished and augmented octaves respectively. Also double octave, 2 octaves; at the octave, to be perf. octave higher than written; in octaves, to be perf. with each note doubled one or more octaves above or below.

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octave

octave In music, the interval between any given note and another one that is exactly twice (or half) the frequency of the first and thus, acoustically, a perfect consonance. In Western music, it encompasses the eight notes of the diatonic scale.

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Octave

Octave. The period of eight days beginning with a Christian feast (i.e. until the same day of the next week), during which it may continue to be celebrated.

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octave

octave A cask for wine containing one‐eighth of a pipe, about 13 imperial gallons (59 L).

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octave

octave •active • captive •festive, restive •dative, native, stative •fictive • unitive • octave • costive •emotive, motive, votive •furtive • appraisive

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