a barrier built across a river to hold back water.

बांध

English Usage: The dam helps to control flooding in the area.

Hindi Usage: बांध क्षेत्र में बाढ़ को नियंत्रित करने में मदद करता है।

a large mass of stone or a solid mineral matter.

चट्टान

English Usage: The mountain is made of granite rock.

Hindi Usage: पहाड़ ग्रेनाइट चट्टान से बना है।

the building of structures from individual units laid in or bound together by mortar.

निर्माण

English Usage: The masonry of the ancient castle is impressive.

Hindi Usage: प्राचीन किले का निर्माण प्रभावशाली है।