A group of four people or things, especially four musicians or singers who perform together.
From Italian *quartetto*, from *quarto* meaning 'fourth', from Latin *quartus* ('fourth'). It was first used mainly in music for works written for four parts.
A quartet is just 'team of four' with an Italian accent. The same 'four' root appears in *quarter*, *quadrilateral*, and *quadrant*, quietly linking music, math, and maps.
Complete word intelligence in one call. Free tier — 50 lookups/day.