overnight
overnight
adverb
/ˌəʊvəˈnaɪt/
1 during or for the night
We stayed overnight in London after the theatre.
suddenly or quickly
Don't expect it to improve overnight.
She became famous overnight.
overnight
adjective
/ˈəʊvənaɪt/
only before noun
1 ​happening during the night; for a night
an overnight flight
overnight accommodation
She took only an overnight bag (= containing the things needed for a night spent away from home).
overnight bag ボストンバック
2 happening suddenly or quickly
The play was an overnight success.