mainsystem
nounUK /ˈmeɪnˌsɪstəm/
US /ˈmeɪnˌsɪstəm/
The main system is the biggest and most important set of parts that work together.
The mainsystem controls all the lights in the building.
RELATED WORDS
OTHER MEANINGS
2. The primary computer or software setup that runs a company's key operations.
The engineers upgraded the mainsystem to handle more users.
3. The main body or structure of an organized whole, as opposed to its smaller parts.
Each branch reports back to the mainsystem every evening.
4. A central power or water supply network serving a whole area.
The town's mainsystem delivers water to every house.