大丈夫 (daijōbu) is one of the most useful — and most slippery — words in Japanese. Its core meaning is "okay / all right / fine," but in practice it stretches across reassurance, "I'm good," and a soft "no thanks."
The core meaning
At heart, daijōbu means everything is fine — safe, all right, no problem.
- 大丈夫？ — Daijōbu? — "Are you okay?"
- 大丈夫です。 — Daijōbu desu. — "I'm okay / it's fine."
Add です (desu) to make it polite; drop it with friends.
The tricky part: "no thanks"
Here's what catches travelers out. When a clerk asks if you want a bag, a receipt, or chopsticks, answering 大丈夫です usually means "no thank you, I'm good" — not "yes, okay." Context and a small head shake carry the "no."
So if you actually do want the thing, don't say daijōbu — say はい、お願いします (hai, onegaishimasu), "yes, please."
Reading yes vs. no
| They ask | You want it? | Say |
|---|---|---|
| 袋は？ (a bag?) | No | 大丈夫です (daijōbu desu) |
| 袋は？ (a bag?) | Yes | お願いします (onegaishimasu) |
| 大丈夫？ (you okay?) | Yes, fine | 大丈夫です / はい |
Where it comes from
The kanji are literally 大 (big) + 丈夫 (sturdy/robust), so daijōbu paints a picture of "solidly fine." It's the same reassuring word a friend uses when you trip, a doctor uses to calm you, and a shop uses to offer you something.
One word, a lot of range — which is exactly why hearing it in real situations beats memorizing a definition. Point a camera translator at Japanese signs and packaging, or use voice to catch phrases like this in the wild, and words like daijōbu start to click. Next: how to say hello in Japanese and the essential travel phrases.