quartets

Noun

quartet (plural quartets)

1. A group of four people or things, particularly
   • The last of the quartet of American fighter pilots to join the RAF before the war was Cyril 'Pussy' Palmer, who was born in Cleveland, Ohio, in March 1918.2015, Tony Holmes, American Eagles: US Fighter Pilots in the RAF 1939-1945
   1. A group of four musicians who perform classical music together.
      • The string quartet played some chamber music.
   2. A musical composition in four parts, each performed by a single voice or instrument.
      • He composed a string quartet.
   3. A group of four singers that sing together in four-part harmony.
      • The barbershop quartet performed the composition a cappella.