What is another word for sub-structures?
Pronunciation: [sˈʌbstɹˈʌkt͡ʃəz] (IPA) 
Sub-structures are essential elements of various engineering and architectural applications. They refer to the framework, foundation, and support systems that underpin a larger structure. There are several synonyms for sub-structures including foundations, frameworks, underpinnings, infrastructures, sub-components, and supporting members. The foundations of sub-structures are generally constructed to support the loads of a larger structure or to withstand external forces and movements. Frameworks, on the other hand, encompass the structural elements that provide support and shape to an overarching structure. Underpinnings refer to the foundational structure that supports a building or other construction. Infrastructures typically refer to the support structures that enable the functioning of a larger system, like bridges or highways. Sub-components are the smaller building blocks that come together to create a larger structure, while supporting members refer to the structural elements that provide additional support to the framework or foundation.
