con·cert (kŏn'sûrt', -sərt)
n.

1. Music. A performance given by one or more singers or instrumentalists or both.
2. 1. Agreement in purpose, feeling, or action.
   2. Unity achieved by mutual communication of views, ideas, and opinions: acted in concert on the issue.
   3. Concerted action: "One feels between them an accumulation of gentleness and strength, a concert of energies" (Vanity Fair).

v., -cert·ed, -cert·ing, -certs. (kən-sûrt')

v.tr.

1. To plan or arrange by mutual agreement.
2. To adjust; settle.

v.intr.
To act together in harmony.

[French, from Italian concerto, from Old Italian, agreement, harmony, from concertare, to bring into agreement, possibly from Vulgar Latin *concertāre, to settle by argument, from Latin, to debate : con-, com- + certāre, to contend, frequentative of cernere, to separate, decide by fighting.]

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The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.

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