- 1[countable] an organized set of ideas or theories or a particular way of doing something the American educational system system for doing something a new system for assessing property taxes system of something a system of government see binary, metric system
- 2[countable] a group of things, pieces of equipment, etc. that are connected or work together a transportation system heating systems a stereo system a security system see ecosystem, expert system, operating system, public address system, solar system
- 3[countable] a human or an animal body, or a part of it, when it is being thought of as the organs and processes that make it function You have to wait until the drugs have passed out of your system. the male reproductive system see central nervous system, digestive system, immune system
- 4the system [singular] (informal) (usually disapproving) the rules or people that control a country or an organization, especially when they seem to be unfair because you cannot change them You can't beat the system (= you must accept it). young people rebelling against the system Idioms
to do something so that you no longer feel a very strong emotion or have a strong desire I was very angry with him, but I think I finally got it out of my system.
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