noun Download 🔗Share The supporting part of a structure (either physical or organizational; the foundation). Examples : "The old house needed repairs because the substructure, the wooden frame beneath the floor, was rotting. " structure architecture building organization part Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share The earth or gravel that the railway tracks are embedded in. Examples : "The train tracks felt stable because the construction crew had recently reinforced the substructure with fresh gravel. " material geology structure Chat with AIVocabulary GamePractice Reading
