overnight
adj.adj. happening during the night or lasting until the morning. It can also describe something that happens very quickly or suddenly.
adj. occurring, lasting, or taking effect during the night; by extension, describing a sudden or immediate transformation or success.
The band became an overnight success after their song went viral.
The courier service offers an overnight delivery option for documents that must arrive by the next morning.
While the actor seemed like an overnight sensation to the public, he had actually spent a decade performing in small regional theaters before landing his breakout role.
Inherited from Middle English overnyght, from Old English ofer niht (“through the night, overnight”), equivalent to over + night. Verbal use (late 19th c.) may have been influenced by German übernachten (16th c.), though it could also have developed independently. Compare also Dutch overnachten (“to overnight”), Middle Low German ȫvernachten (“to overnight”), West Frisian oernachtsje (“to overnight”), Saterland Frisian uurnoachtje (“to overnight”).
Typically used as an attributive adjective, appearing before the noun it modifies.