Base
Base noun - An immaterial thing upon which something else rests.
Usage example: the firm belief that complete trust between husband and wife is the base of any successful marriage
Substructure is a synonym for base in foundation topic. In some cases you can use "Substructure" instead a noun "Base", when it comes to topics like thing, groundwork. popular alternative
Substructure
Substructure noun - Lowest support of a structure.
Base is a synonym for substructure in foundation topic. You can use "Base" instead a noun "Substructure", if it concerns topics such as thing, basis, development, bottom. popular alternative
Nearby Word: substruction
Mutual synonyms
Cite this Source
Substructure and Base. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/base/substructure
Base & Substructure. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/base/substructure>.
Substructure or Base. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/base/substructure.
Google Ngram Viewer shows how "base" and "substructure" have occurred on timeline