aha
/ɑːhɑː/
Proposed by a contributor, not yet supported by evidence.
Sense 1
Meaning · English
An exclamation of understanding, realization, invention, or recognition.
Interjection
Examples
Aha! That will work.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
Meaning · English
An exclamation of surprise, exaltation, or contempt.
Interjection
Examples
Aha! Now I've got you!
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “aha” mean?
An exclamation of understanding, realization, invention, or recognition.
Is “aha” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.