corps de ballet
US /ˌkɔːr də bælˈeɪ/
UK /ˌkɔːr də bælˈeɪ/

1.
the members of a ballet company who dance together as a group, not as soloists
:
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The beautiful synchronization of the corps de ballet was breathtaking.
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She started her career as a dancer in the corps de ballet.