[ابو بيشو]

The dancers were dressed in their national clothes. ,.,f
The dancers were dressed in their national costume.
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costume = (1) (countable) a set of clothes worn during a performance
by an actor, clown, etc: 'She used to work for a theatre company,
designing and making costumes.' (2) (uncountable) a set of clothes that
are typical of a particular country or historical period: 'The castle guides
were dressed up in Elizabethan costume.' 'A group of Hungarian folk
dancers came on stage, all wearing national costume