Octave

• POS: Adjective, Noun
• HYPHEN: oc=tave

CIDE DICTIONARY

Octave, n. [F., fr. L. octava an eighth, fr. octavus eighth, fr. octo eight. See Eight, and cf. Octavo, Utas.].

•  The eighth day after a church festival, the festival day being included; also, the week following a church festival.  Jer. Taylor.  [1913 Webster]
•  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.  [1913 Webster]

  " The ratio of a musical tone to its octave above is 1:2 as regards the number of vibrations producing the tones."  [1913 Webster]
•  The first two stanzas of a sonnet, consisting of four verses each; a stanza of eight lines.  [1913 Webster]

  "With mournful melody it continued this octave."  [1913 Webster]
•  A small cask of wine, the eighth part of a pipe.  [1913 Webster]

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.

Octave, a. 

 Consisting of eight; eight.  Dryden.  [1913 Webster]

OXFORD DICTIONARY

Octave, n.
1 Mus. a 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. b this interval. c each of the two notes at the extremes of this interval. d these two notes sounding together.
2 a group or stanza of eight lines; an octet.
3 a the seventh day after a festival. b a period of eight days including a festival and its octave.
4 a group of eight.
5 the last of eight parrying positions in fencing.
6 Brit. a wine-cask holding an eighth of a pipe.

Etymology

ME f. OF f. L octava dies eighth day (reckoned inclusively)

THESAURUS

Octave

English horn, Octateuch, Spenserian stanza, antistrophe, bassoon, block flute, bombard, book, bourdon, burden, canto, cello, chorus, claribel, clarinet, clarion, concert flute, consecutive intervals, contraoctave, cornet, cornopean, couplet, cromorna, cymbel, degree, diapason, diatessaron, diatonic interval, diatonic semitone, distich, double contraoctave, dulciana, eight, eighter from Decatur, eighth, enharmonic diesis, enharmonic interval, envoi, epode, fifth, flute stop, foundation stop, four-foot octave, four-line octave, fourniture, fourth, gamba, gedeckt, gemshorn, great octave, half step, halftone, harmonic flute, heptastich, hexastich, hybrid stop, interval, koppel flute, larigot, less semitone, line, measure, melodia, melodic interval, mixture, monostich, mutation stop, nazard, note, oboe, octad, octagon, octahedron, octameter, octastich, octastyle, octavo, octet, octonary, octosyllable, ogdoad, one-line octave, organ stop, ottava, ottava alta, ottava bassa, ottava rima, parallel octaves, pentastich, piccolo, plein jeu, posaune, principal, quatrain, quint, quintaten, rank, ranket, reed stop, refrain, register, rhyme royal, rohr flute, second, semitone, septet, sesquialtera, sestet, seventh, sextet, shawm, sixth, small octave, spitz flute, stanza, stave, step, stop, stopped diapason, stopped flute, strain, string diapason, string stop, strophe, subcontraoctave, syllable, tercet, terza rima, tetrastich, third, tierce, tone, tone row, tremolo, triplet, tristich, trombone, trumpet, twelfth, two-foot octave, two-line octave, unda maris, unison interval, utas, verse, vibrato, viola, voix celeste, vox angelica, vox humana, whole step

ROGET THESAURUS

Octave

Concord

N concord, accord, harmony, symphony, homologue, agreement, sympathy, empathy, response, union, unison, unity, bonds of harmony, peace, unanimity, league, happy family, rapprochement, reunion, amity, alliance, entente cordiale, good understanding, conciliation, peacemaker, intercessor, mediator, concordant, congenial, agreeing, in accord, harmonious, united, cemented, banded together, allied, friendly, fraternal, conciliatory, at one with, of one mind, at peace, in still water, tranquil, with one voice, in concert with, hand in hand, on one's side, commune periculum concordiam parit, melody concord, melody, rhythm, measure, rhyme, pitch, timbre, intonation, tone, scale, gamut, diapason, diatonic chromatic scale, enharmonic scale, key, clef, chords, modulation, temperament, syncope, syncopation, preparation, suspension, resolution, staff, stave, line, space, brace, bar, rest, appoggiato, appoggiatura, acciaccatura, note, musical note, notes of a scale, sharp, flat, natural, high note, low note, interval, semitone, second, third, fourth, diatessaron, breve, semibreve, minim, crotchet, quaver, semiquaver, demisemiquaver, hemidemisemiquaver, sustained note, drone, burden, tonic, key note, leading note, fundamental note, supertonic, mediant, dominant, submediant, subdominant, octave, tetrachord, major key, minor key, major scale, minor scale, major mode, minor mode, passage, phrase, concord, harmony, emmeleia, unison, unisonance, chime, homophony, euphony, euphonism, tonality, consonance, consent, part, harmony, harmonics, thorough-bass, fundamental-bass, counterpoint, faburden, piece of music, composer, harmonist, contrapuntist (musician), harmonious, harmonical, in concord, in tune, in concert, unisonant, concentual, symphonizing, isotonic, homophonous, assonant, ariose, consonant, measured, rhythmical, diatonic, chromatic, enharmonic, melodious, musical, melic, tuneful, tunable, sweet, dulcet, canorous, mellow, mellifluous, soft, clear, clear as a bell, silvery, euphonious, euphonic, euphonical, symphonious, enchanting fine-toned, full-toned, silver-toned, harmoniously, in harmony, as one, the hidden soul of harmony.