The Highway Forums General Discussion Open Forum Terms

Here's my amateur take on it.

Augustinianism refers to the theology of St. Augustine (the Bishop of Hippo in Northern Africa during the 3rd century). He was Catholic, so not all of his theology could be characterized as "reformed" (especially since he predates the reformation by about 1200 years). But he did believe in forensic justification.

Calvinism refers specifically to the theology and writings of John Calvin, who was a French reformer after Luther. He did not agree with Luther at every point, but he was a leader of the Protestant Reformation. In a broader sense, many people refer to those who embrace the Reformed Faith as Calvinists.

Monergism is a technical, theological term that means "one working"--in other words, the salvific work is by God alone and man contributes nothing to his salvation. It's opposite term is synergism, which means "working together" and means that man works together with God (cooperates with grace) in salvation.

Reformed, to me, means that one affirms the Doctrines of Grace, reformed soteriology, and covenant theology. I'm sure there is a much better definition and others will jump in and correct me where I am wrong, but that is my understanding.