What this shows is that pollsters must be careful in defining terms. We know, for example, that the word “atheism” can mean either nonbelief (not believing that God exists) or disbelief (believing that God does not exist). We also know that there are atheistic religions, such as Jainism. For some people, “atheism” may connote rejection of organized religion rather than absence of belief. Imagine a poll about rape that failed to define the term. Some people conceive of rape as forced sex. Some conceive of it as coerced sex. Some conceive of it as manipulated sex. Some conceive of it as unwanted sex. Unless you define what the term “rape” means, your poll is worthless.