二次
Meanings
noun which may take the genitive case particle 'no', noun
Used as a noun or with の to mean 'second' in order, rank, or sequence. Common in compounds like 二次試験 (second-stage exam).
The second-stage exam will be held next week.
noun-modifying (irregular)
Prenominal use (adj-f) meaning 'secondary' or 'of lesser importance'. Often in fixed terms like 二次的な問題 (secondary issue).
That is merely a secondary issue.
noun-modifying (irregular)
quadratic; second-order
Mathematics term; used prenominally in phrases like 二次関数 (quadratic function) or 二次方程式 (quadratic equation).
Please draw the graph of the quadratic function.
noun which may take the genitive case particle 'no'
fictional; two-dimensional; drawn
Abbreviation of 二次元 (two-dimensional), used in otaku culture to refer to anime, manga, or fictional characters as opposed to real life (三次元). Often written as 虹 in niche contexts.
See also: 二次元
He is only interested in fictional characters.
Usage patterns
- 二次試験を受けるto take the second-round exam
Since I passed the first-round exam, I'll take the second-round exam next week.
- 二次的な〈事〉a secondary (effect, problem, etc.)
This medicine has secondary side effects.
- 二次方程式を解くto solve a quadratic equation
We learned how to solve quadratic equations in math class.
- 二次元にはまるto get absorbed in 2D (anime/manga) characters
Ever since he got into 2D characters, he's been watching nothing but anime.
- 二次会に行くto go to the after-party (the second, follow-up gathering)
After the drinking party, we all went to the after-party.