<p><strong>Verb</strong></p><ul><li>(used with object) underpinned, underpinning.</li><li>To prop up or support from below; strengthen, as by reinforcing a foundation.</li><li>To replace or strengthen the foundation of (a building or the like).</li><li>To furnish a foundation for; corroborate: The author's conclusions are underpinned by references to experimental findings.</li></ul><p><strong>End of Response</strong></p>