aha
aha — exclamation
1. a sound you make out loud when you suddenly figure out an answer, notice somethi
a sound you make out loud when you suddenly figure out an answer, notice something you had missed, or find something you were looking for
Aha! Now I see the mistake I made in my maths homework.
Zuri searched her bag and cried 'Aha!' when she found the missing key.
used in quoted speech: cried 'Aha!'
Daichi stared at the equation, then whispered, 'Aha, I get it now.'
'Aha!' — that was the sound from the kitchen when Antonia discovered the hidden biscuits.
There was a loud 'aha' from the back of the classroom when the answer clicked.
用法筆記
Often written with an exclamation mark (aha!). The related phrase 'aha moment' describes a moment of sudden understanding or insight.
aha — noun
- ahasingular
- ahasplural
1. a chemical substance found in many face creams and beauty products that helps li
a chemical substance found in many face creams and beauty products that helps lift away old, dead skin so that new skin can show through, leaving the face smoother and brighter
Sirin bought a face cream that contains AHA to help with dry skin.
The label said the toner has both AHA and BHA for different skin needs.
After using an AHA serum for a month, Chiara's skin looked much smoother.
Mira squinted at the skincare shelf in the pharmacy and chose the AHA serum with the lowest concentration.
Rania checked the ingredients list and found glycolic acid, which is a type of AHA.
- fruit acid
a less technical term often used in beauty marketing; most AHAs do come from fruit
- glycolic acid
one specific type of AHA; narrower in meaning
用法筆記
Almost always written in capitals (AHA) on product labels. Short for 'alpha hydroxy acid.' Common types include glycolic acid and lactic acid.