《computing》external character; user-defined character; character not included in the JIS character set
kanji not included in the jōyō or jinmeiyō lists
foreign letters (esp. of a Western language); foreign writing
jōyō kanji; kanji for common use; list of 2,136 kanji designated for common use…
jinmeiyō kanji; non-jōyō kanji legally permitted for use in personal names