Hockey - a family of games played on ice, tartan, plastic, wood, or grass surfaces, where two teams try to hit the opponent's goal using a ball or puck with sticks. Each team has a goalkeeper (sometimes two, with the second being a substitute), who defends their team's goal, along with several field players. There are many types of hockey, such as ice hockey, field hockey, and others.

In most countries around the world, the term "hockey" without clarification refers to field hockey, whereas in the USA, Canada, Russia, and most countries in Eastern and Northern Europe, this term typically refers to ice hockey. For example, in the Russian national sports registry, ice hockey is listed simply as "hockey" without any additional specification.