1. a set of connected things or parts forming a complex whole
2. an organized method or procedure for doing something
3. the human or animal body as a whole, especially with regard to its vital processes
Usage: medical

Examples

• The solar system contains eight planets.
• Our school has a new computer system.
• She developed an efficient filing system.
• The immune system protects the body from disease.
• The political system needs reform.
• This heating system is very energy efficient.
• He has his own system for studying.
• The transportation system in the city is excellent.