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三次元 (sanjigen) Japanese meaning: three dimensions | Kotomora
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This movie is much more impressive when watched in 3D.
Calculate the three-dimensional coordinates.
Usage patterns 〈 物もの 〉 を 三さん 次じ 元げん で 表ひょう 示じ する to display something in 3D
This software can display buildings in 3D.
三さん 次じ 元げん に 戻もど る to return to the real world (from anime, games, etc.)
I should get back to the real world soon.
三さん 次じ 元げん 的てき に 〈 動どう 詞し 〉 to (do something) three-dimensionally / from a 3D perspective
三さん 次じ 元げん の 〈 人ひと 〉 a real (flesh-and-blood) person, as opposed to a fictional character
He apparently has no interest in real (as opposed to fictional) women.
Kanji 元 beginning, former time, origin Related words 立体 emphasizes a solid, three-dimensional shape or object, while 三次元 is the more technical/mathematical term for three-dimensional space itself.
現実 is the neutral, everyday word for 'reality', while 三次元 in this sense is otaku slang for the real world as opposed to anime/manga.
リアル is a casual loanword for 'real life' used similarly to 三次元's slang sense, but without the specific otaku-culture framing.
Opposites 二次元 means 'two-dimensional' and in otaku slang refers to the fictional world of anime and manga, the direct opposite of 三次元's real-world sense.
三次元 refers to the real, three-dimensional world, the opposite of 二次 (short for 二次元) which refers to fictional 2D anime/manga characters.
Written forms 三さん 次じ 元げん
Standard kanji spelling; preferred in formal and general contexts.
3さん 次じ 元げん
Numerical variant using half-width 3; common in technical or informal writing.
Etymology Compound of 三 (three) + 次元 (dimension). The slang sense derives from the otaku community's contrast between the 'two-dimensional' (二次元) world of anime/manga and the 'three-dimensional' real world.
If you think about it three-dimensionally, this problem is easy to solve.