nightcap
US /ˈnaɪt.kæp/
UK /ˈnaɪt.kæp/
1.
a drink taken before bedtime
:
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He always enjoys a small whiskey as a nightcap.
•
Let's have a nightcap before we call it a night.
2.
a soft cap worn in bed to keep the head warm
:
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In old movies, you often see characters wearing a nightcap.
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She knitted a soft wool nightcap for her grandfather.