Ko
(
コ
)
tsu
(
ツ
)
Ko
(
コ
)
tsu
(
ツ
)
App Store
Google Play
Vocabulary
Non-JLPT
Day 173
源
New
Sino-Japanese
源
源
げん
~ source (as in 感染源 and 資源)
suffix
Sino-Japanese
Lv.5
Again
1
Hard
2
Good
3
Easy
4
Previous word
Space flip · 1–4 grade · ← → move
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