noun
pannier; hoop skirt
A structured undergarment or frame worn under a skirt to give it a wide, bell-like shape; associated with historical European fashion and modern formal wear.
from French panier
ドレスの下にパニエを着けると、スカートがふんわり広がる。
When you wear a pannier under a dress, the skirt spreads out softly.
結婚式で、花嫁は大きなパニエを使った。
At the wedding, the bride used a large hoop skirt.