三次元(さんじげん)

さんじげん
noun; no-adjective
three-dimensional; 3D
1. three-dimensional; 3D
Having or appearing to have length, width, and depth. Used in science, technology, and everyday language.
三次元(さんじげん)の映像(えいぞう)を楽(たの)しむ。
To enjoy three-dimensional imagery.
三次元(さんじげん)プリンターで模型(もけい)を作(つく)った。
I made a model with a 3D printer.
この映画(えいが)は三次元(さんじげん)対応(たいおう)の映画館(えいがかん)で見(み)たほうがいい。
You should see this movie at a theater that supports 3D.
2. real; real-world (as opposed to fictional/2D)
In otaku culture, refers to the real world and real people, as opposed to the two-dimensional world of anime, manga, and games.
三次元(さんじげん)には興味(きょうみ)がない。
I have no interest in the real world. (said by an anime fan)
二次元(にじげん)より三次元(さんじげん)のほうが好(す)きだ。
I prefer real people to fictional characters.
三次元(さんじげん)の女性(じょせい)にはまったく興味(きょうみ)がないと言(い)っていた。
He said he has absolutely no interest in real women.

USAGE:
In technical contexts, refers to 3D space or 3D technology. In internet and otaku culture, 三次元(さんじげん) (3D, real world) contrasts with 二次元(にじげん) (2D, anime/manga world). This slang usage is widely understood in Japan.

COMMON COLLOCATIONS:

  • 三次元(さんじげん)プリンター (3D printer)
  • 三次元(さんじげん)映像(えいぞう) (3D imagery)
  • 三次元(さんじげん)CG (3D computer graphics)

SIMILAR WORDS:

  • 二次元(にじげん): two-dimensional, 2D — also used for the anime/manga world
  • 立体(りったい): solid, three-dimensional — more formal/technical synonym
general
Added 2026.3.21 18:10
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