What is the meaning of Really?

In a way or manner that is real, not unreal.

Actually; in fact; in reality.

Very (modifying an adjective); very much (modifying a verb).

Indicating surprise at, or requesting confirmation of, some new information; to express skepticism.

A phatic confirmation by a listener, to signal active listening; mostly devoid of literal meaning, with the phatically contrived incredulity being merely formulaic.

Indicating that what was just said was obvious and unnecessary; contrived incredulity

Indicating affirmation, agreement.

Indicating displeasure at another person's behaviour or statement.

Alternative form of re-ally

Source: wiktionary.org

See also