system
nounUK /ˈsɪstəm/
US /ˈsɪstəm/
A system is a set of parts that work together.
The body has a system that helps us digest food.
OTHER MEANINGS
2. A set of rules or ways of doing things.
The school has a new system for grading tests.
3. A group of connected computers or machines.
The alarm system went off during the night.
4. The whole body of a person or animal.
Stress can weaken your immune system.
5. An organized way of naming or classifying things.
Scientists use a system to group animals.