What's the difference?

What's the difference between "all-knowing" and "know-all" if such word exits?

Someone who is "all-knowing" is wise. Someone who is a "know-it-all" is a bit arrogant, annoying and thinks he/she is an expert on everything.

Someone who is all-knowing is omniscient. I'm not certain whether that impiles wisdom. Knowledge and wisdom are different.

Very true, Jim.

Ricardo,

A better explanation of "all-knowing" would be the omniscient narrator, i.e the narrator that knows everything about all of the characters in the book...their backgrounds, their thoughts, etc.

I think my definition of "know-it-all" was okay, but if anyone cares to add something, by all means do.

mjd, thanks a lot for your help.
you wrote "by all means do", I suppose it means " please". Right?

I should have written: "by all means please do" (I forgot my manners for a second there)

Cool, but you still did not give me any explanation of "by all means". Couldjo do that by any chance please?

By all means....use any way you choose to make your point or whatever, without any hesitation or doubt

It's pretty much an expression that means "please do."