Nba
In short
The National Basketball Association is the premier professional basketball league in North America, consisting of 30 teams across the United States and Canada.
In plain words
It is the highest level of basketball competition in the world. Players from every continent compete in this league to win championships. It is run by a central organisation based in New York and New Jersey.
A simple example
A fan in London might watch a game between the Los Angeles Lakers and the Boston Celtics on television.
Why it matters
The league sets the global standard for basketball skill and popularity. It generates massive revenue and influences how the sport is played everywhere.
Easy to mix up
Do not confuse the NBA with the WNBA, which is the professional women's basketball league.