"I knew it!" (3)

I think it could be either:

aha

hah

(Other definitions for aha that I've seen before include "I'm surprised" , "Cry of surprise" , "Expression of surprise, satisfaction or triumph" , "I get it!" , "I see!" .)

I've seen this clue in the L.A. Times Daily, the King Feature Syndicate, the Universal, the LA Times and the USA Today.

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