This term is used interchangeably in everyday conversation but there is a big distinction if we want to get technical.
Cement, or more commonly referred to as Portland cement due to its popularity, is a flour-like mixture of limestone, calcium, silicon, aluminium, iron and other ingredients. These raw rocks are crushed and heated in a kiln to 2700 degrees Fahrenheit. The finished mixture would trigger chemicals reactions to harden when water is added. Cement is one of the basic recipe to make concrete.