\ ä-ˈhä How to pronounce aha (audio) \

Definition of aha

 (Entry 1 of 2)

used to express surprise, triumph, or derision


\ ˌā-(ˌ)āch-ˈā How to pronounce AHA (audio) \

Definition of AHA (Entry 2 of 2)

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Synonyms for aha

Synonyms: Interjection

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Examples of aha in a Sentence

Interjection aha! so the money was never missing in the first place!
Recent Examples on the Web: Interjection Aha, here's a whole other way to look at this problem.' Domenica Bongiovanni, Indianapolis Star, "Can the creative minds of artists find solutions to social problems where others have failed?," 23 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'aha.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of aha


14th century, in the meaning defined above


1991, in the meaning defined above

History and Etymology for aha


Middle English

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Time Traveler for aha

Time Traveler

The first known use of aha was in the 14th century

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Cite this Entry

“Aha.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aha. Accessed 29 Feb. 2020.

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More Definitions for aha

How to pronounce AHA (audio)

English Language Learners Definition of aha

used when something is suddenly seen, found, or understood
\ ä-ˈhä How to pronounce aha (audio) \

Kids Definition of aha

used to express discovery or understanding Aha! I knew it was you!


\ ˌā-(ˌ)āch-ˈā How to pronounce AHA (audio) \

Medical Definition of AHA

 (Entry 1 of 2)

Medical Definition of AHA (Entry 2 of 2)

1 American Heart Association
2 American Hospital Association

More from Merriam-Webster on aha

Thesaurus: All synonyms and antonyms for aha

Rhyming Dictionary: Words that rhyme with aha

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