American Dictionary

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Definition overnight in American English

overnight adverb

adverb
/ˌoʊvərˈnaɪt/
1

during the night, or from one evening until the next morning

Example

We traveled overnight.

Example

They stayed overnight at the hotel.

Example

Soak the beans overnight in cold water.

Synonyms and related words
2

in a very short time

Example

Don't expect to become famous overnight.

Synonyms and related words
Definition overnight in American English