外字
Meanings
external character; user-defined character; non-JIS character
Computing term for a character not included in a standard character set, especially the JIS set; often created by users or vendors.
This font contains many external characters.
Create a user-defined character and embed it in the document.
non-standard kanji; kanji outside the jōyō and jinmeiyō lists
Refers to kanji not included in the official jōyō (common use) or jinmeiyō (name) lists; often used in names or older texts.
His name uses a kanji outside the standard lists.
Non-standard kanji are not included in the jōyō kanji list.
foreign letters; foreign writing
Broadly refers to letters or characters from non-Japanese writing systems, especially Western alphabets.
If the address contains foreign letters, registration may not be possible.
Care is needed when using foreign characters in Japanese text.