quartette

/K W AO0 R T EH1 T/
noun
  1. 1

    A music composition in four parts, each performed by a single voice or instrument.

    โ€œA string quartet.โ€

  2. 2

    The set of four musicians who perform a piece of music together in four parts.

    โ€œA quartet of violinists.โ€

  3. 3

    A group of four singers, usually males, who sings together in four-part harmony.

    โ€œA gospel quartet.โ€

  4. 4

    Any group of four, especially people.

Source: https://en.wiktionary.org/wiki/quartet, https://en.wiktionary.org/wiki/quartette