Merriam - Webster’s Collegiate Dictionary, 11th Edition, thus defines a Protestant as “a member of any of several church denominations denying the universal authority of the Pope and affirming the Reformation principles of justification by faith alone, the priesthood of all believers, and the primacy of the Bible as the only source of revealed truth. ”
तेव्हापासून, धर्मसुधारणेच्या तत्त्वांचे व ध्येयांचे समर्थन करणाऱ्‍या सर्वांना सर्वसामान्यपणे प्रोटेस्टंट असे लेखण्यात येऊ लागले.