overnight

US /ˌoʊ.vɚˈnaɪt/
UK /ˌoʊ.vɚˈnaɪt/
"overnight" picture
1.

for the duration of a night

:
•
We stayed overnight at a hotel.
•
The package arrived overnight.
:
all nightthrough the night
2.

suddenly or very quickly

:
•
Her mood changed overnight.
•
The company became successful overnight.
:
suddenlyrapidlyinstantaneously
1.

done or happening during the night

:
•
We took an overnight train to Paris.
•
The company offers overnight delivery.
:
nightlynighttime