International sports competition where competitors represent their nation
A world cup is a global sporting competition in which the participant entities – usually international teams or individuals representing their countries – compete for the title of world champion. The events most associated with the concept are the FIFA World Cup for association football (the most popular sports competition in the world), along with the ICC Men's Cricket World Cup for cricket, both of which are widely known simply as "the World Cup.
https://en.wikipedia.org/wiki/World_cup