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synonym Comparative
確かに
VS
確かな

Differences Between "確かに" and "確かな"

Option A
確かに
Meaning
certainly; surely; definitely; for sure; arguably
Reading
たしかに (tashikani)
Syllabus Level
N3
Practical Example
この最新のキャッシュ最適化アプローチの導入により、初期ローディング速度は_______劇的に向上したとデータが示しています。
Data indicates that, through the introduction of this latest cache optimization approach, the initial loading speed was certainly dramatically enhanced.
Option B
確かな
Meaning
certain, sure, reliable, accurate
Reading
たしかな (tashikana)
Syllabus Level
N3
Practical Example
彼の話はいつも確かな情報に基づいている。
His stories are always based on reliable information.

Which one to use?

Select the correct Japanese word for this context

Which word fits this context: "(certainly; surely; definitely; for sure; arguably)"?
🎉 正解 / Correct!
使い分け解説:
- 確かに: Refers to expressing strong agreement, acknowledging a fact as indisputable, or declaring a certain outcome with absolute conviction. Often used as 確かにそうだ or 確かに受け取る. ⚠️ Haruka's Voice Column: 'Certainly/for sure! "My top priority life milestone is definitely to make you the happiest wife in the world, Haruka-san!" ...っ! Definitely making me happy! B-Baka! A reliable declaration full of conviction! ...Keep that certain vow of yours without even a single millimeter of deviation, and keep filling me with sweet love lifelong! dummy!' / 【ハルカ部長のワンポイント指導】『たしかに(確かに)よ!『ハルカ部長、僕の人生の最優先マイルストーンは、確かに(間違いなく)あなたを世界一幸せな妻にすることです!』って…っ!確かに幸せにする!バカ!/// 確信に満ちた頼もしい宣言!…その確かにの誓い、1ミリもブレさせずに、一生私を甘々で満たし続けなさい!』
- 確かな: Used to describe something that is definite, reliable, or accurate. It's a な-adjective. e.g., 「確かな情報」(tashikana jōhō - reliable information)
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