What is cornerstone meaning?

Cornerstone refers to an important and fundamental element upon which something stands or relies. In the literal sense, a cornerstone is the first stone set in the foundation of a building, and it is essential in ensuring the stability and solidity of the structure. Figuratively, cornerstone is used to represent a critical factor or principle that supports or contributes to the success of a company, organization, or system. It is the basis upon which everything else is built, and without it, the enterprise may crumble. The term cornerstone is often used metaphorically in various fields such as business, religion, and education.