a hat that shades the face and neck from the sun, esp one made of cotton with a projecting brim now worn esp by babies
WordReference Random House Learner's Dictionary of American English © 2026
sun•bon•net /ˈsʌnˌbɑnɪt/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2026- Clothinga bonnet with a large brim to protect the head and face from the sun.
sun•bon•net
(sun′bon′it),USA pronunciation n.
sun′bon′net•ed, adj.
- Clothinga bonnet with a large brim shading the face and sometimes a piece projecting over the neck, worn by women and children.
- sun + bonnet 1815–25
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