noun
folk costume; national costume; traditional dress
Refers to the traditional clothing of a particular ethnic group or nation. Often used in contexts like cultural festivals, museums, or tourism.
彼女は民族服を着て祭りに参加した。
She participated in the festival wearing a folk costume.
この博物館には世界各国の民族服が展示されている。
This museum displays folk costumes from around the world.
衣装 is a general term for clothing or costume, often used for stage or ceremonial attire, not necessarily traditional or ethnic.
Compound of 民族 (ethnic group, nation) and 服 (clothing). The term is a straightforward modern coinage for 'folk costume'.