noun🔗ShareA support or foundation, especially as a structure of masonry that supports a wall."The old stone house had sturdy underpinnings that kept it from sinking into the soft ground. "architecturebuildingstructureChat with AIVocabulary GamePractice Reading
noun🔗ShareA basis for something."I would like to know more about the underpinning of this political theory."theorystructuresystembusinessphilosophyChat with AIVocabulary GamePractice Reading
noun🔗ShareThe lower body or legs."The table's wobbly underpinnings needed tightening to prevent it from collapsing. "bodyanatomypartChat with AIVocabulary GamePractice Reading
