octet

IPA/ɒkˈtet/
KK[ɑktˈɛt]IPA/ɑːkˈtet/

octet — noun

  • octetsingular
  • octetsplural

1. a piece of music that has been created so that eight instruments or voices can p

1.nounC1
Definition

a piece of music that has been created so that eight instruments or voices can play it together.

Example

Mendelssohn wrote his famous octet when he was only sixteen years old.

common collocation: write/compose an octet

The string quartet teamed up with four more players to perform a Schubert octet.

collocation: perform an octet

Common collocations
  • string octet
  • wind octet
  • brass octet
  • perform an octet
  • compose an octet

Usage Note

Subject is usually the composer, the work, or a music group. Often paired with 'string', 'wind', or 'brass' to specify the instruments.

Common Mistakes

I listened to a octet last night.
I listened to an octet last night.
'octet' starts with a vowel sound, so use 'an'.

2. a group of eight musicians or singers who play or sing as one ensemble.

2.nounC1
Definition

a group of eight musicians or singers who play or sing as one ensemble.

Example

The jazz octet took the stage at the festival and opened with a slow blues number.

subject: a music ensemble

Tomás joined a vocal octet at his university and now sings every Sunday at the chapel.

collocation: join an octet

Common collocations
  • jazz octet
  • vocal octet
  • brass octet
  • join an octet
  • form an octet
Synonyms
  • ensemble

    ensemble can be any size; octet specifies eight

  • group

    group is general; octet is specifically eight musicians

Usage Note

Distinguish from sense 1: this sense refers to the eight people performing, while sense 1 refers to the musical work itself. The same word is used for both, so context decides.

3. a set or collection of eight people or things that are counted or treated as one

3.nounC2
Definition

a set or collection of eight people or things that are counted or treated as one unit.

Example

An octet of climbers reached the summit just before sunrise on the second day.

pattern: an octet of [plural noun]

Aylin packed an octet of fragile glass jars carefully into the wooden shipping crate.

pattern: an octet of [things]

Common collocations
  • an octet of
  • octet of people
  • octet of items
Synonyms
  • eight

    eight is the everyday cardinal number; octet is the formal noun for a set of eight

Usage Note

Used in formal or literary writing to count groups of eight. In everyday speech, native speakers say 'a group of eight' or 'eight of them' instead.

Common Mistakes

I bought octet eggs.
I bought eight eggs.
'octet' is a noun, not a number adjective; use 'eight' for counting directly.

Word family

  • octave
    nounB2
  • octagon
    nounB2
  • octopus
    nounA2

Synonym discussion

Sense: noun/2

An octet names a specific size — exactly eight musicians or singers performing together. Ensemble is the broadest term; it covers any small group of musicians, from a duo to a chamber orchestra, with no size implied. Group is the most general everyday word and works in any context, musical or not, while ensemble feels slightly more formal and is preferred in classical or jazz writing. Band tends to mean a contemporary pop, rock, or marching group, often with electric instruments, and is rarely used for classical players. Use octet when the eight-player size is the point; reach for ensemble when you mean a chamber group of unspecified size; pick band for rock or pop. For example: 'The Mendelssohn octet needs eight skilled players,' but 'The band played until midnight.'

octet ↗ensemble ↗group ↗band ↗

Common collocations

Nouns

  • string octet
  • wind octet
  • brass octet
  • vocal octet
  • jazz octet

Phrases

  • perform an octet
  • compose an octet
  • form an octet
  • join an octet

Prepositions

  • an octet of

Etymology

LatinItalianEnglish

Borrowed from Italian 'ottetto', a diminutive of 'otto' meaning 'eight', which itself comes from Latin 'octo' (eight). The word entered English in the early nineteenth century, first as a musical term for a piece written for eight performers, then later for the group of performers themselves. The same Latin root appears in 'octopus' (eight feet), 'October' (originally the eighth month in the Roman calendar), and 'octagon' (eight-sided shape).