"out of" vs. "out"

Do you say “run out of the door” or “run out the door”? Do you say “look out of the window” or “look out the window”? Are both fine? Do they have the same meaning?

Yes, either one is fine. It is more common in the US to say “out the door”, maybe because we’re always in a hurry, so it’s one less word to say :wink: Anyway, they have the same meaning.