Material Noun

Material Noun (पदार्थवाचक संज्ञा
Material Noun is the name of the matter of which things are made of.
पदार्थवाचक संज्ञा  उस चीज का नाम है, जिससे चीजें बनती हैं।
Compare the noun under (A)  &   (B) 
Column      (A)            &       Column (B)

• A table is made of wood. 
  A picture is made of clay. 
  A balloon is made of rubber. 
  Pitcher is made of clay. 
  A coat is made of cloth.