Four performers or singers who perform together.

synoniem: quartet.

Nederlands: kwartet, viertal
Pools: kwartet

A set of four similar things considered as a unit.

synoniemen: quadruple, quadruplet, quartet.

Four people considered as a unit.

synoniemen: foursome, quartet.

Nederlands: viertal
Pools: czwórka

A musical composition for four performers.

synoniem: quartet.

Pools: kwartet