The definition of “con·cert”
/n., adj. ˈkɒn
sɜrt, -sərt; v. kənˈsɜrt/
–noun
1. a public musical performance in which a number of singers or instrumentalists, or both, participate.
2. a public performance, usually by an individual singer, instrumentalist, or the like; recital: The violinist has given concerts all over the world.
3. agreement of two or more individuals in a design or plan; combined action; accord or harmony.
–adjective
4. designed or intended for concerts: concert hall.
5. performed at concerts: concert music.
6. performing or capable of performing at concerts: a concert pianist.
–verb (used with object)
7. to contrive or arrange by agreement: They were able to concert a settlement of their differences.
8. to plan; devise: A program of action was concerted at the meeting.
–verb (used without object)
9. to plan or act together.
—Idiom
10. in concert, together; jointly: to act in concert.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2010.