Ko
(
コ
)
tsu
(
ツ
)
Ko
(
コ
)
tsu
(
ツ
)
App Store
Google Play
Vocabulary
N4
Day 7
確か
New
確か
確か
たしか
certain, sure
na-adjective
native Japanese
Lv.3
Again
1
Hard
2
Good
3
Easy
4
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