really

adverb

• 1in actual fact, as opposed to what is said or imagined to be true or possible:so what really happened? they’re not really my aunt and uncle [sentence adverb]:really, there are only three options
• used to emphasize a statement or opinion:I really want to go I’m sorry, Ruth, I really am
• seriously (used in questions and exclamations with an implied negative answer):do you really expect me to believe that?

• 2 [as submodifier] very; thoroughly:I think she’s really great a really cold day

exclamation

• used to express interest, surprise, or doubt:‘I’ve been working hard.’ ‘Really?’
• used to express mild protest:really, Marjorie, you do jump to conclusions!
• chiefly US used to express agreement:‘It’s a nightmare finding somewhere to live in this town.’ ‘Yeah, really.’