competition noun

Synonyms: competition, contest, match, game

competition: an event in which several teams or people compete with each other
Example: He won first prize in the photography competition.

contest: any event or situation in which people compete with each other
a beauty contest. 
Example: 
There are three senior politicians in this leadership

contest.

match: a single occasion when two teams or players compete with each other in a
sport
Example: We watched the football match on TV.  He won the last two tennis
matches he played.

game: an activity in which people compete with each other using skill, strength
or luck
Example: She’s not very good at games like chess.  I enjoy a game of cards.