If 'God' is just a word, do I mean by that it is only poetic? Well not quite. What I mean is that it can't be thought in terms of denotation (or even its supposed opposite connotation). An idea means something, which then has a reference to reality. Such a reference might be tortuous (which is what connotation is), but in the end it does refer to something. In Kant, for example, the idea of God has its ultimate reference in the subject. The word, however, does not denote or connote. It is not a reference, but a practice.