Most people think of "Darwinism" as equivalent to "evolution" but that can't be right. There are some mechanisms of evolutionary change—like random genetic drift—that clearly don't fall under the general beliefs of Darwin and his modern followers.
In today's terminology, Darwinism refers to a worldview that emphasizes natural selection as the most important mechanism of evolutionary change. Some extreme Darwinists even deny that change by random genetic drift counts as evolution.
Those of us who adhere to a broader view of evolution are called "pluralists" because we we consider several different mechanisms of evolution and several different levels of evolutionary change.
Jim Lennox is a philosopher. He has written a revised version of the "Darwinism" entry in Stanford Encyclopedia of Philosophy [Darwinism]. Now we all know that philosophers can be wordy, if it can be said by a normal person in two paragraphs then a philosopher can't possible write anything less than a small book. However, at the very least you expect to see a conclusion that makes sense. Is "Darwinism" a viable position in the 21st century? What does "pluralism" mean?
And wouldn't you expect a serious discussion of adaptationism and how it relates to Darwinism? I would.
Read the entry and see if you can decide whether "Darwinism" is a good synonym for "evolution."
[Hat Tip: John Wilkins]