[noun] [C] - a performance of music by one or more musicians or singersThe school orchestra is playing in a concert this evening.The quartet played to a packed concert hall.I once saw her performing in concert at Carnegie Hall.A concert-goer is a person who often goes to concerts.A concert grand is the biggest type of piano, and is the type that is usually played at concerts.If someone is at concert pitch, they are prepared and ready to do something, esp. something important.
CONCERT
Meaning of CONCERT in English
Cambridge English vocab. Кембриджский английский словарь. 2012