English > understructure: 1 sense > noun 1, artifact| Meaning | Lowest support of a structure. |
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| Synonyms | foundation, base, fundament, foot, groundwork, substructure |
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| Part of | structure, construction | A thing constructed |
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| Narrower | bed | A foundation of earth or rock supporting a road or railroad track |
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| raft foundation, raft, mat | A foundation (usually on soft ground) consisting of an extended layer of reinforced concrete |
| Broader | support | supporting structure that holds up or provides a foundation |
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| Spanish | base, cimentación, cimiento, fundación, fundamento, pie |
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| Catalan | base, fonament, peu |
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