a solid material made from a mixture of cement, water, and aggregates

a physical, tangible object or concept

एक भौतिक, ठोस वस्तु या विचार

English Usage: The teacher explained the concrete concept of gravity using a ball.

Hindi Usage: शिक्षक ने एक गेंद का उपयोग करके गुरुत्वाकर्षण का ठोस विचार समझाया।