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English definition of “really”


adverb     /ˈrɪəli/
VERY A1 very or very much: She's really nice . I really don't want to go. That's really interesting . "Did you like it then?" "Er, not really" (= no).Very and extremeComplete and wholeIntensifying expressions
TRUTH B1 used when you are saying what is the truth of a situation : She tried to hide what she was really thinking . They didn't really say anything important .Reality and truth
Really? A2 used when you are surprised at what someone has just said: " Apparently , he's leaving ." "Really?"InterjectionsSounds used as interjections
(Definition of really adverb from the Cambridge Learner's Dictionary © Cambridge University Press)

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