Definify.com
Webster 1913 Edition
Aha
A-ha′
,int
erj.
[
Ah
, interj. + ha
.] An exclamation expressing, by different intonations, triumph, mixed with derision or irony, or simple surprise.
Webster 1828 Edition
Aha
'AH'A.
1.
An exclamation expressing triumph, contempt, or simple surprise; but the senses are distinguished by very different modes of utterance, and different modification of features.2.
A sunk fence, not visible, without near approach.