| Associated with \uHHHH |
| Associated with RFC 5137 |
| Associated with \u |
| Associated with u |
| Associated with U |
| Associated with RFC5137 |
| Associated with \u'HHHH' |
| Associated with \UHHHHHHHH |
| Associated with \UHHHHHH |
| Associated with x-u-escaped |
| Associated with hex notation |
| Associated with Hex Notation |
| Associated with \u{} |
| Associated with 十六進記法 |
| Associated with \u{ |
| Associated with HEX |
| Associated with universal character name |
| Associated with ユニバーサルキャラクタ名 |
| Associated with Universal character name |
| Associated with Universal Character Names |
| Associated with Universal Character Name |
| Associated with UCN |