the entertainment available to people seeking nighttime diversion
"a futile search for intelligent nightlife"
the activity of people seeking nighttime diversion (as at the theater, a nightclub, etc.)
"in the summer the nightlife shifts to the dance clubs"
Nocturnal activities, especially visiting nightclubs.
"The city's vibrant nightlife draws crowds from all over to dance until dawn in its famous nightclubs."
In plain English: Nightlife is all the fun activities and places people go out to enjoy after dark, like clubs, bars, or concerts.
"The city's vibrant nightlife attracts tourists from all over the world every weekend."
Usage: Nightlife refers specifically to social entertainment and leisure activities that take place after dark, such as going to bars or clubs. Use this term when describing the general atmosphere of evening fun in a city rather than just being awake at night.
The word nightlife is a straightforward combination of the words night and life that emerged to describe social activities occurring after dark. It was formed by joining these two common terms rather than evolving from an older phrase with a different meaning.