During its four-century history, New York City has been known by a variety of alternative names and euphemisms, both officially and unofficially. Frequently shortened to simply "New York", "NY", or "NYC", New York City is also known as "The City" in some parts of the Eastern United States, in particular, the State of New York and surrounding U.S. states. New Yorkers also use "The City" to refer specifically to the borough of Manhattan.
Nightlife is a collective term for entertainment that is available and generally more popular from the late evening into the early hours of the morning. It includes pubs, bars, nightclubs, parties, live music, concerts, cabarets, theatre, cinemas, and shows. These venues often require a cover charge for admission. Nightlife entertainment is often more adult-oriented than daytime entertainment. People who prefer to be active during the night-time are called night owls.