# aa: Japanese–English dictionary

Canonical URL: https://anaversity.com/dictionary/japanese-english/aa
Language pair: Japanese and English
CEFR level: C2
Part of speech: noun
IPA: /ˈɑːɑː/
Katakana pronunciation: アーアー

## Meaning in English
A type of volcanic lava flow that cools into a rough, jagged, stony surface with sharp fragments.
## 日本語の意味
鋭い破片を持つ、粗くギザギザした石の表面に冷え固まる火山溶岩流の一種。
## English equivalents
- aa
## Japanese equivalents
- アア溶岩
- アア
## Examples
- ハイカーたちは鋭いアア溶岩の上を慎重に歩かなければならなかった。
  - English: The hikers had to tread carefully over the sharp aa lava.
- ハワイの火山は、パホイホイとアアの両方の流れを生み出すことで知られている。
  - English: Hawaiian volcanoes are known for producing both pahoehoe and aa flows.
- 地質学者たちは、火山活動を理解するためにアアの形成と特徴を研究している。
  - English: Geologists study the formation and characteristics of aa to understand volcanic activity.

## More from Anaversity
- [Japanese–English dictionary](https://anaversity.com/dictionary/japanese-english)
- [aa in the English dictionary](https://anaversity.com/dictionary/english/aa)
- [AI and agent access guide](https://anaversity.com/llms.txt)

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