たしか – Vocabulary details

たしか

Adjective (な)

Noun

1. sure; certain; positive; definite

Adjective (な)

2. reliable; trustworthy; safe; sound; firm; accurate; correct; exact

Adverb

3. If I'm not mistaken; If I remember correctly; If I remember rightly

た

しか

surely; certainly

to make sure; to check; to ascertain; to confirm; to verify

confirmation; certification; ascertainment

たしかだよ。

I'm certain.

それは、たしかですか？

Are you sure about that?

彼かれの情じょう報ほうはたしかだ。

His information is certain.

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