The way religious people have subverted the definitions of a great many words to reinforce their preconceptions about reality. Belief, theory, ignorance, closed-mindedness, etc.
Truth is, in order to begin arguing against evolution, the big bang, atheism or even other religions from a religious standpoint, you automatically admit your god(s)'s only place is in the gaps of human knowledge. Then everything after that is simply attempting to halt or turn back the progress of human intellect, so as to give your god a bigger gap to reside within. You are truly lost when you start using words such as "closed-mindedness" and/or "ignorance" to describe people who would prefer you either provide real proof or cease to exist.