Hi Helen, Both words are used to describe something that is factual. In addition, both words are intensifiers to emphasis on something (Eg You are truly brilliant! / You are really brilliant!) On the other hand, "truly" has a stronger emphasis that (1) something is indeed the truth, the reality or when we are not lying (2) we are sincere in what we say. (Eg We are truly sorry for the inconvenience that we have caused.) Hope this helps. Cheers, Lance

Basically the same, although "truly" is perhaps a bit more emphatic.

Yes, both words (really and truly) if used in this sentence have the same meaning.