A group of four people or things, especially in music.

A composition for four instruments or voices.

चार वाद्य यंत्रों या सुरों के लिए एक रचना।

English Usage: Mozart wrote a famous quartet that is still played today.

Hindi Usage: मोज़ार्ट ने एक प्रसिद्ध चौकड़ी लिखी जो आज भी खेली जाती है।