Great question! When I was a freshman, I too found myself curious to know what WAC meant! Nonetheless, what I found was that there are many theories behind what it could me. So I did a little research and spoke to some upperclassmen including an WC alumni from 1942 and I have concluded that “WAC" is the college’s much more traditional name that dates back to it’s founding date, where George Washington wrote in a letter to the President of Washington College, William Smith, stating “Washington At Chester”. Secret to those only that attend or have attended Washington College, WAC is used mostly as a cheering name!