The Kanji at a Glance
The kanji for big is 大. It began as a pictograph of a person standing with arms and legs flung wide, which is the same gesture a child makes when describing how large a fish was.
- On’yomi: DAI, TAI
- Kun’yomi: oo(kii), oo(ini)
- Strokes: 3
- Core meaning: big, large, great
The stroke order is a horizontal bar, then a long diagonal sweeping down to the left, then a diagonal down to the right. Japanese children learn it in their first year of school, and it appears in more everyday vocabulary than almost any other character in the language.
Meaning and Nuance
大 covers literal size, but in compounds it does a second job: it signals scale, seriousness, and importance. A thing that is 大 is not just physically large, it matters.
- 大学 (daigaku) is university, literally “great learning.”
- 大切 (taisetsu) means important, precious, treasured. When someone calls a person 大切な人, they are saying that person is dear to them.
- 大丈夫 (daijoubu) is the everyday word for “it’s fine, no problem,” heard dozens of times a day in Japan.
- 大人 (otona) means adult, and it is an irregular reading where 大 and 人 together are pronounced otona rather than by either character’s usual sounds.
That range is worth knowing before you commit to the character. On its own, 大 is neutral and blunt. It says “large.” It does not carry the sense of “great” as in admirable, the way an English speaker might hope. For that feeling you want a compound.
As a Tattoo
大 is popular precisely because it is simple, balanced, and instantly recognizable. Three strokes hold a lot of open space, so a well-brushed 大 reads as calm rather than crowded.
The warning is specific and it is the most common kanji tattoo error there is. One extra short stroke in the upper right turns 大 into 犬 (inu), which means dog. The two characters differ by a single mark. If your artist is copying from a low-resolution photo or a screenshot, that dot can appear or vanish without anyone noticing. The same family holds 太 (futoi, thick or fat), which is 大 with a dot beneath it, and 天 (ten, heaven), which is 大 with a bar across the top. A single mark moves you between four different words.
Japanese and simplified Chinese write 大 identically, so this character carries no script conflict. A reader in either language sees the same word, which cuts both ways: there is no ambiguity to hide behind if the meaning is not what you wanted.
Because it is only three strokes, 大 scales down cleanly and suits small placements like the inner wrist, the ankle, or behind the ear. At larger sizes the negative space becomes the design, and any wobble in the diagonals shows immediately.
If “big” alone feels thin, consider a compound. 偉大 (idai) means greatness or magnificence. 大切 (taisetsu) means precious. Both say something a single character cannot. Whichever you choose, confirm with a native speaker before you ink.
Set your character vertically and horizontally in different brush styles with the Japanese Tattoo Generator, and read the broader context in our guide to japanese tattoo meanings.
Related Kanji
FAQ
What is the kanji for big?
The kanji for big is 大, read dai or tai in its on’yomi and ookii in its kun’yomi. It is written in three strokes and means big, large, or great. It is one of the first kanji taught in Japanese elementary school.
How many strokes does 大 have?
Three. A horizontal line, a long left-falling diagonal, then a right-falling diagonal. It is one of the simplest kanji in common use, which is part of why it works so well as a standalone design.
What is the difference between 大 and 犬?
犬 is 大 with one additional short stroke in the upper right, and it means dog. The characters are otherwise identical. This is the single most common look-alike error in kanji tattoos, so check the reference image at full resolution before any needle touches skin.
Does 大 mean the same thing in Chinese?
Yes. 大 is written the same way in Japanese, simplified Chinese, and traditional Chinese, and it means big or great in all three. The pronunciation differs, but the meaning and the shape do not.