n. 帽子

[ noun ]
headdress that protects the head from bad weather; has shaped crown and usually a brim
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Chapeau \Cha`peau"\, n.; pl. {Chapeux}. [F., fr. OF. chapel hat.
See {Chaplet}.]
1. A hat or covering for the head.

2. (Her.) A cap of maintenance. See {Maintenance}.

{Chapeau bras}[F. chapeau hat + bras arm], a hat so made that
it can be compressed and carried under the arm without
injury. Such hats were particularly worn on dress
occasions by gentlemen in the 18th century. A chapeau bras
is now worn in the United States army by general and staff
officers.