concert UK /kənˈsɜːt/US /kənˈsɝt/noun 3verb 3forms 4phrases 1 noun3 •an event at which several people play music or sing in front of an audienceI’m going to the rock concert on Friday.I am going for the Travis Scott concert in November. •An agreement in a design or plan; a union formed by mutual communication of opinions and views; an accordance in a scheme; harmony; a simultaneous action. •Musical accordance or harmony; concord. verb3 •To plan together; to settle or adjust by conference, agreement, or consultation.It was concerted to begin the siege in March. — 1716 •To act in harmony or conjunction; to form combined plans.The ministers of Denmark were appointed to concert the matter with Talbot. — 1716 •To plan; to devise; to arrange.The month ends with a fine day; and I have been walking, and visiting Lewis, and concerting where to see Mr. Harley. I have no news to send you. — 1710 formsconcerted · concerting · concerteth · concerts Phrases with concert in concertActing together.