centralsystem

noun
UK /ˈsɛntrəl ˈsɪstəm/
US /ˈsɛntrəl ˈsɪstəm/

The main part that controls and connects everything else.

The brain is the central system that tells the body what to do.


OTHER MEANINGS

2. The main computer or set of computers that runs a whole network.

All the office printers connect to the central system.

3. The most important part of a large organization or process.

The central system of the school is its main office.

4. A group of connected parts that work together as the main support.

The city's central system of pipes brings water to every home.