|Origin:||Italian concerto, from concertare; CONCERTED|
con‧cert S3 W3 [countable]
a performance given by musicians or singers:
a rock concert
live concert performances
a concert of French choral music
We were going to a concert in Bath Abbey.
He gave a concert at the opera house.
people who do something in concert do it together after having agreed on it:
Britain has to pursue policies in concert with other EU members.
It appeared that both the accused were acting in concert in the attack upon the deceased.
playing or singing at a concert:
They're appearing in concert tonight at the Royal Concert Hall.