A sport is an activity where players compete for a prize or to win for the sake of winning. There are many sports: hockey, football, baseball, soccer, water polo, basketball, curling, volleyball, fencing, etc. I do not consider competitions which depend on subjective judging to be _real_ sports (but that just makes me a purist). To me, a sport must involve something objective like scoring goals or points -- somehow physically prevailing over your opponent.