Competition is a situation in which two or more people or groups are trying to get something which not everyone can have.

The competition is the person or people you are competing with.

Competition is an activity involving two or more firms, in which each firm tries to get people to buy its own goods in preference to the other firms' goods.

The competition is the goods that a rival organization is selling.

A competition is an event in which many people take part in order to find out who is best at a particular activity.