Different facets of the same thing? For most people, yes. Although there are those for whom some are true but not others. I’ve always been a secularist, but I’ve never been an apatheist. I’ve only occasionally been antitheistic, but I’ve often considered myself agnostic.

Having a richer shared vocabulary helps us to understand the intricate nuances of one another’s beliefs (or disbeliefs). Which for somebody like me, who’s quite interested in religion and religious belief, is very valuable.