Noun
a rhythmic group of eight lines of verse

Noun
a musical interval of eight tones

Noun
a feast day and the seven days following it

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n.
The eighth day after a church festival, the festival day being included; also, the week following a church festival.

n.
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 whole diatonic scale itself.

n.
The first two stanzas of a sonnet, consisting of four verses each; a stanza of eight lines.

n.
A small cask of wine, the eighth part of a pipe.

a.
Consisting of eight; eight.

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Octave

Oc"tave , n. [F., fr. L. octava an eighth, fr. octavus eighth, fr. octo eight. See Eight, and cf. Octavo, Utas.] 1. 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. 2. (Mus.) (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. (b) The whole diatonic scale itself. &hand; The ratio of a musical tone to its octave above is 1:2 as regards the number of vibrations producing the tones. 3. (Poet.) The first two stanzas of a sonnet, consisting of four verses each; a stanza of eight lines.

With mournful melody it continued this octave.

Double octave. (Mus.) See under Double. -- Octave flute (Mus.), a small flute, the tones of which range an octave higher than those of the German or ordinary flute; -- called also piccolo. See Piccolo. 4. A small cask of wine, the eighth part of a pipe.

Octave

Oc"tave , a. Consisting of eight; eight. Dryden.

The eighth day after a church festival, the festival day being included; also, the week following a church festival.

Consisting of eight; eight.