What does "aha" mean?

Initialism of alpha-hydroxy acid.

What is a synonym for "aha"?

Common synonyms include: afisr, ah, aha moment, ana, attention cue, blink.

/ɑːhɑː/ intj, name, noun

intj, name, noun ·Uncommon ·Advanced level

Noun

1
Initialism of alpha-hydroxy acid. abbreviation, alt-of, countable, initialism, uncountable
2
Initialism of Agricultural Holdings Act tenancy. England, Wales, abbreviation, alt-of, countable, initialism

Intj

1
An exclamation of understanding, realization, invention, or recognition.
"Aha! That will work."
2
An exclamation of surprise, exaltation, or contempt.
"Aha! Now I've got you!"

Proper Noun

1
Initialism of American Heart Association: an American non-profit organization focusing on cardiovascular medical research, education and care. abbreviation, alt-of, initialism, uncountable, usually
2
Initialism of Agricultural Holdings Act. England, Wales, abbreviation, alt-of, countable, initialism, usually

"Aha, go on, what happened next?"

From Middle English a ha, aha, natural expression. Equivalent to ah + ha!.