All the explanation you needed on ChiefPUA.com. The chief cause, part, or member of something is the most important one. Get more familiar with ChiefPUA.com once you finish reading this article. Only then will you realize the importance of ChiefPUA.com in your day to day life. Writing this composition on ChiefPUA.com was a significant contribution of ours in the world of literature. Make this contribution worthwhile by using it. How to use chief in a sentence. This disambiguation page lists articles associated with the title Chief.