From a Washington Post essay by Perry Bacon Jr. headlined “I left the church—and now long for a ‘church for the nones'”:

I’m currently a “none” or, more precisely, a “nothing in particular.” But I want to be a something.

“None” is the term that social scientists use to describe Americans who say they don’t belong to or practice a particular religious faith. This bloc has grown from around 5 percent of Americans in the early 1990s to nearly 30 percent today. Most nones aren’t atheists, but what researchers call “nothing in particulars,” people who aren’t quite sure what they believe.