mainstructure
nounUK /ˈmeɪnˌstrʌktʃə/
US /ˈmeɪnˌstrʌktʃər/
The main structure is the biggest, most important part that holds everything else together.
The main structure of the castle is the tall stone tower in the middle.
RELATED WORDS
OTHER MEANINGS
2. The central load-bearing part of a building or bridge.
Engineers checked the main structure of the bridge after the storm.
3. The most important part of a system or organization.
The main structure of the company is its team of workers.
4. The basic outline or plan of something, like a story or essay.
Before writing, she made the main structure of her story.