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English definition of “aha”

aha

exclamation     /ɑːˈhɑː/
used when you suddenly understand or find something: Aha, now I see what you mean! Aha, that's where I put my keys!Sounds used as interjectionsInterjections
(Definition of aha exclamation from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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