Difference between Jeans and Denim
Denim is the name of the fabric that is used to make jeans. It is a fabric made of cotton twill that is 100% cotton and very comfortable. ... Denim is a fashion fabric used to make many things, whereas jeans is just one of the garments made from denim.

Denim is the fabric whereas jeans is the trouser that is made of denim cloth

• Denim is used to make not just jeans but also shirts and skirts apart from many other accessories

• Denim is made of heavy twill

• All jeans are denim, but not all denims are jeans

• Denim is a fashion fabric used to make many things, whereas jeans is just one of the garments made from denim