different between seventh vs octave

English

Etymology

From Middle English sevenþe, sefte, from Old English seofoþa, from Proto-Germanic *sebundô.

Pronunciation

• (UK, US) IPA^(key): /?s?v.?n?/

Adjective

seventh (not comparable)

1. The ordinal form of the number seven.

Synonyms

• 7th, 7^th, VIIth; (in names of monarchs and popes) VII

Translations

Noun

seventh (plural sevenths)

1. The person or thing in the seventh position.
2. One of seven equal parts of a whole.
3. (music) A tone of the seventh degree from a given tone, the interval between two such tones, or the two tones sounding in unison.

Translations

Middle English

Adjective

seventh

1. Alternative form of sevenþe

English

Etymology

From Latin octavus (“eighth”).

Pronunciation

• (UK) IPA^(key): /??kt?v/, /??kte?v/
• (US) IPA^(key): /??kt?v/, /??kte?v/

Noun

octave (plural octaves)

1. (music) An interval of twelve semitones spanning eight degrees of the diatonic scale, representing a doubling or halving in pitch frequency.

2. (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.

3. (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)
4. (poetry) A poetic stanza consisting of eight lines; usually used as one part of a sonnet.

   • With mournful melody it continued this octave.

5. (fencing) The eighth defensive position, with the sword hand held at waist height, and the tip of the sword out straight at knee level.
   • 2009, Ray Finkleman

     If they always do a lateral parry quarte, and never a semicircular octave, that gives you an opening.

6. (Christianity) The day that is one week after a feast day in the Latin rite of the Catholic Church.
   • 2014, Jennifer Gregory Miller

     It was extended to the entire Church by 1814, and then in 1913 the feast was transferred to September 15, the octave day of the Birth of Mary and the day after the Exaltation of the Cross.

7. (Christianity) An eight-day period beginning on a feast day in the Latin rite of the Catholic Church.
   • 1870, The Night Hours of the Church, trans. Rev. J. M. Neale

     Of an Octave the Office is said. or at least commemorated, (when any Sunday or Feast intervene), for eight successive days.# A small cask of wine, one eighth of a pipe.

8. (mathematics, obsolete) An octonion.
9. (signal processing) Any of a number of coherent-noise functions of differing frequency that are added together to form Perlin noise.
10. (astrology) The subjective vibration of a planet.
    • 2016: Kristin Fontana, The Beach Reporter

      Mercury then joins its higher octave and generous counterpart Jupiter early next week, and it opens gates of opportunity.

Abbreviations

• (interval): P8

Derived terms

Related terms

• octavo
• oct-
• octave key

Translations

See also

• interval
• unison
• second
• third
• fourth
• fifth
• sixth
• seventh
• Octave (disambiguation) on Wikipedia.Wikipedia
• Octave in the Encyclopædia Britannica (11th edition, 1911)

Verb

octave (third-person singular simple present octaves, present participle octaving, simple past and past participle octaved)

1. Alternative form of octavate

Adjective

octave (not comparable)

1. (obsolete) Consisting of eight; eight in number.

   • Boccace […] is said to have invented the octave rhye

Anagrams

• avocet, vocate

Interlingua

Pronunciation

• IPA^(key): /ok?ta.ve/

Adjective

octave

1. eighth

Latin

Numeral

oct?ve

1. vocative masculine singular of oct?vus