二次元(にじげん)

にじげん
noun
two-dimensional, 2D
scienceentertainment
1. two-dimensional, 2D
Having only two dimensions (height and width). Used in mathematics, science, and technology.
二次元(にじげん)の図形(ずけい)を描(えが)く。
To draw a two-dimensional shape.
このゲームは二次元(にじげん)のグラフィックだ。
This game has 2D graphics.
数学(すうがく)で二次元(にじげん)座標(ざひょう)を学(まな)んだ。
I studied two-dimensional coordinates in math class.
2. the 2D world (anime, manga, games)
In otaku culture, refers to the world of anime, manga, and games, as opposed to the real (three-dimensional) world. Often used when discussing fictional characters or the gap between fiction and reality.
二次元(にじげん)のキャラクターが好(す)きだ。
I like 2D characters.
彼(かれ)は二次元(にじげん)にしか興味(きょうみ)がないらしい。
Apparently he's only interested in the 2D world.
二次元(にじげん)と三次元(さんじげん)の区別(くべつ)がつかなくなるほどアニメにハマっている。
He's so into anime that he can't tell the difference between 2D and 3D anymore.

Cultural note: In Japanese internet and otaku culture, 二次元(にじげん) (2D) refers to the world of anime, manga, and games, while 三次元(さんじげん) (3D) refers to the real world. People who prefer fictional characters over real people are sometimes said to be 二次元(にじげん)好(ず)き.

Common collocations

Related Words

Compare: 三次元(さんじげん) (three-dimensional)
general
Added 2026.2.16 16:35 · Revised 2026.9.2 13:01
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