Other meanings for overnight...
happening during the night; for a night
suddenly or quickly
- I feel I became a new person overnight.
From Banshee Season 2: Origins - The Person You Were Meant to Be (Cinemax)
- Confidence is not something that happens overnight.
From Female Celebrities Give Advice To Young Women
- You're not some Johnny-come-lately. This didn't happen overnight.
From Lizzo Talks Rise On The Charts, Future Acting Career | TODAY
- And 4 more examples...