Ko
(
コ
)
tsu
(
ツ
)
Ko
(
コ
)
tsu
(
ツ
)
App Store
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Vocabulary
N1
Day 49
研ぐ
New
研ぐ
研ぐ
とぐ
to sharpen (a knife), to wash (rice)
Group 1 verb
native Japanese
Lv.6
Again
1
Hard
2
Good
3
Easy
4
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Space flip · 1–4 grade · ← → move
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