Definitions
1.AdverbIn a way or manner that is real, not unreal.
2.AdverbActually; in fact; in reality.""He really is a true friend." / "Really? What makes you so sure?""
3.AdverbVery (modifying an adjective); very much (modifying a verb)."But ma, I really, really want to go to the show!"
4.InterjectionIndicating surprise at, or requesting confirmation of, some new information; to express skepticism."A: He won the Nobel Prize yesterday.; B: Really?; A: You know, I saw Oliver the other day.; B: Really? What's he been up to?"
5.InterjectionA phatic confirmation by a listener, to signal active listening; mostly devoid of literal meaning, with the phatically contrived incredulity being merely formulaic."A: You know, I saw Oliver the other day.; B: Really? What's he been up to?"
6.InterjectionIndicating that what was just said was obvious and unnecessary; contrived incredulity"A: I've just been reading Shakespeare - he's one of the best authors like, ever!; B: Really?"
7.InterjectionIndicating affirmation, agreement."A: That girl talks about herself way too much.; B: Really. She's a nightmare."
8.InterjectionIndicating displeasure at another person's behaviour or statement."Well, really! How rude."
9.VerbAlternative form of re-ally.