Definition of "Nones"
Nones1
noun
Those without any religious affiliation: atheists and others outside any organized religion.
Quotations
The second is the “Nones” proper, those who in response to the question “What is your religious tradition, if any?” answer “None.” […] Even among the “Nones” only a small minority identify as atheist or agnostic. In fact, the vast majority of “Nones” claim beliefs and attitudes more like than unlike those of persons inside churches, synagogues, temples, and mosques.
2004, Patricia O’Connell Killen, Introduction to Religion and Public Life in the Pacific Northwest: The None Zone, page 17
The mobility of American society has done little or nothing to erode strong regional religious cultures such as those of the Catholics of the Northeast, the Lutherans of the Upper Midwest, the Baptists of the South and the “Nones” of the Pacific Northwest.
2006, Barry A. Kosmin et al., Religion in a Free Market, pages xvi–xvii
Suppose that we administered a scale that measures support for capital punishment at the interval-ratio level to a randomly selected sample that includes Protestants, Catholics, Jews, people with no religious affiliation (“Nones”), and people from other religions (“Others”). […] Are Protestants significantly more supportive than Catholics or Jews? How do people with no religious affiliation compare to other people?
2012, Joseph F. Healey, Statistics: A Tool for Social Research, 9th edition, page 242
For example, in a 2008 report called American Nones: The Profile of the No Religion Population released by the respected ARIS (American Religious Identification Survey), one reads that “the Nones increased from 8.1 percent of the U.S. adult population in 1990 to 15 percent in 2008 and from 14 to 34 million adults...”
2013, J. L. Schellenberg, Evolutionary Religion, page 136