bonnet
US /ˈbɑː.nɪt/
UK /ˈbɑː.nɪt/

1.
a woman's or child's hat, tied under the chin and often framing the face
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The baby wore a cute pink bonnet.
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She tied the strings of her bonnet under her chin.
2.
(British English) the hinged metal cover over the engine of a motor vehicle
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He lifted the car's bonnet to check the oil.
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Smoke was coming from under the bonnet.
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