Purpose is the reason why the writer wrote their work and what they are trying to accomplish with their work.

The purpose is the reason why the work was created by the author. The purpose of a project is what the author is trying to accomplish by sharing their work with their audience. An example for purpose is our technical proposal project. In this project we wrote the technical proposal to share with the government and investors, to receive funding for the project and get permission to build towers in parts of the city.