Yes. I agree with others who have said “God.” Any God that we could conceive of couldn’t possibly live up to the notion we mean when we speak of a God. To be God, God would have to be something that a human mind can’t contain. God could not just be like a big human being.
This is one of the reasons that I say it doesn’t matter if there’s a God there or not. I don’t believe there is, but even if there is, it can’t change anything I do.
However, there have been plenty of people over the millennia who don’t hesitate to talk about “knowledge” of God and who think they can tell us not only what God is but what God wants and the meaning of what God does. I refrain from calling them all charlatans because they have included great minds such as those of Kant and Kierkegaard, but I honestly don’t think they could have known any more about God (if God there be) than a snail in my garden could.
Now, gods, with a small g, are different. We can know about those because they are our creations. We can know about them as much as we can know about human mythology, culture, and history because that’s where they are to be found.