Last Updated：2025/12/06

Dictionary quizzes to help you remember the meaning

Dictionary quizzes to help you remember the meaning

supplementary plane

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Source Word

supplementary plane

Noun

(computing) Any of the 16 Unicode planes located above Plane 0 (the BMP) and requiring the use of surrogate pairs to encode in UTF-16 (Planes 1 through 16, collectively covering the range of code points from U+10000 through U+10FFFF).

Japanese Meaning

Supplementary plane は、コンピューティングの分野で、基本多言語面（BMP、平面0）より上位に位置する16のUnicode平面のいずれかを指します。これらは、UTF-16での符号化時にサロゲートペアを必要とし、平面1から平面16までが該当し、コードポイントの範囲はU+10000からU+10FFFFとなります。

What is this buttons?

When implementing UTF-16, characters in a supplementary plane must be encoded using surrogate pairs.

Google Translation / DeepL Translation

UTF-16を実装する際、補助平面（基本多言語面の上にある16のUnicode面のいずれか、コードポイントU+10000〜U+10FFFF）にある文字はサロゲートペアを使ってエンコードする必要があります。

Sense（1）

(computing) Any of the 16 Unicode planes located above Plane 0 (the BMP) and requiring the use of surrogate pairs to encode in UTF-16 (Planes 1 through 16, collectively covering the range of code points from U+10000 through U+10FFFF).

supplementary planes

（ plural ）

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