(さい)

さい
noun
difference, discrepancy, disparity
1. difference, discrepancy, disparity
A noticeable difference or gap between two or more things. More formal than 違い and often used in academic, analytical, or official contexts.
文化(ぶんか)差異(さい)(みと)める。
To acknowledge cultural differences.
両者(りょうしゃ)(あいだ)には(おお)きな差異(さい)がある。
There is a significant difference between the two.
調査(ちょうさ)結果(けっか)地域(ちいき)によって教育(きょういく)水準(すいじゅん)(おお)きな差異(さい)があることが(あき)らかになった。
The survey results revealed that there are significant disparities in educational standards depending on the region.

STRUCTURE:
() (difference, gap) + () (different, unusual).

USAGE:
差異(さい) is a formal synonym of (ちが)い (difference). It is preferred in written, academic, and analytical contexts where precise or objective language is expected. Compared to (), which emphasizes a measurable gap, 差異(さい) focuses on qualitative differences between things being compared.

COMMON COLLOCATIONS:

  • 差異(さい)がある: there is a difference
  • 差異(さい)(みと)める: to acknowledge differences
  • 差異(さい)()む: to create differences
  • 個人(こじん)差異(さい): individual differences
  • 文化的(ぶんかてき)差異(さい): cultural differences