অর্থ : Being or operating under the surface of the earth.
							উদাহরণ : 
							Subterranean passages.
							A subsurface flow of water.
							
সমার্থক : subterraneous
অর্থ : Lying beyond what is openly revealed or avowed (especially being kept in the background or deliberately concealed).
							উদাহরণ : 
							Subterranean motives for murder.
							Looked too closely for an ulterior purpose in all knowledge.
							
সমার্থক : subterraneous, ulterior