concert
US /ˈkɑːn.sɚt/
UK /ˈkɑːn.sɚt/

1.
concert
a musical performance given in public, typically by several performers or of a varied program.
:
•
We went to a rock concert last night.
Nous sommes allés à un concert de rock hier soir.
•
The orchestra will perform a special concert next month.
L'orchestre donnera un concert spécial le mois prochain.
2.
concert, accord
agreement or harmony between people or groups.
:
•
The two nations acted in concert to address the crisis.
Les deux nations ont agi de concert pour faire face à la crise.
•
Their efforts were in perfect concert.
Leurs efforts étaient en parfait accord.
1.
concerter, coordonner
to arrange (something) by mutual agreement; coordinate.
:
•
The two departments concerted their efforts to complete the project on time.
Les deux départements ont concerté leurs efforts pour terminer le projet à temps.
•
They concerted a plan for the upcoming event.
Ils ont concerté un plan pour l'événement à venir.