quar ‧ tet /kwɔːˈtet $ kwɔːr-/ BrE AmE noun [countable]
[ Date: 1700-1800 ; Language: Italian ; Origin: quartetto , from quarto 'fourth' , from Latin quartus ; ⇨ ↑ quarter 1 ]
1 . four singers or musicians who sing or play together:
a string quartet (=four people playing musical instruments with strings, such as violins)
2 . a piece of music written for four performers
3 . four people or things of the same type
quartet of
a quartet of short films set in the 1920s
⇨ quintet
, trio