JLPT N4 · な-adjective

確か (tashika)

確か (たしか, tashika) is a Japanese な-adjective meaning “sure; certain”. It appears in JLPT N4 vocabulary lists and is marked as a common word in JMdict.

Reading: たしか
Romaji: tashika
Word class: な-adjective
Level: JLPT N4 (unofficial)

Meaning

sure; certain; positive; definite · な-adjective
reliable; trustworthy; safe; sound; firm · な-adjective
If I'm not mistaken; If I remember correctly; If I remember rightly · adverb

Example sentences

彼が間違っているのは確かです。

It is certain that he is wrong.

Tatoeba #120503

私はそのニュースを確かな筋から得た。

I got the news from a reliable source.

Tatoeba #160351

これは確か淡水魚だと思います。

I believe this fish is a freshwater fish.

Tatoeba #218464

Sentences from the Tatoeba project, linked to this word in JMdict.

Conjugation of 確か

な-adjective. Plain and polite forms below; try any other word in the Japanese verb conjugator.

Form	Japanese	Reading
Present (plain)	確かだ	たしかだ tashikada
Present (polite)	確かです	たしかです tashikadesu
Negative	確かじゃない	たしかじゃない tashikajanai
Past	確かだった	たしかだった tashikadatta
Negative past	確かじゃなかった	たしかじゃなかった tashikajanakatta
Te-form	確かで	たしかで tashikade
Before a noun	確かな	たしかな tashikana
Adverb (~ni)	確かに	たしかに tashikani

Kanji in 確か

確

assurance, firm, tightカク・コウ・たし.か・たし.かめる · 15 strokes

Related words

Other vocabulary sharing a kanji with 確か.

正確せいかくaccurate確実かくじつcertain確認かくにんconfirmation明確めいかくclear確かめるたしかめるto make sure確率かくりつprobability的確てきかくaccurate適確てきかくaccurate確信かくしんconviction確定かくていdecision確保かくほsecuring確立かくりつestablishment

Source: JMdict entry 1596930 (EDRDG, CC BY-SA 4.0). Level: unofficial JLPT list – how levels are assigned.