| Nom (anglais): | CJK Unified Ideograph-8981[1] |
| Version Unicode: | 1.1 (juin 1993)[2] |
| Bloc: | Idéogrammes unifiés CJC, U+4E00 - U+9FFF[3] |
| Plan: | Plan multilingue de base, U+0000 - U+FFFF[3] |
| Écriture: | idéogrammes han (sinogrammes) (Hani) [4] |
| Catégorie: | Lettre, autre (Lo) [1] |
| Classe bidirectionelle: | Gauche-à-droite (L) [1] |
| Classe de liaison: | Non réordonné (0) [1] |
| Caractère miroir: | Non [1] |
| Entité HTML: |
|
| Encodage UTF-8: | 0xE8 0xA6 0x81 |
| Encodage UTF-16: | 0x8981 |
| Encodage UTF-32: | 0x00008981 |
| kCowles | 1385 1388 |
| kDaeJaweon | 1597.040 |
| kFennIndex | 616.04 618.08 619.01 |
| kGSR | 1142a |
| kHanYu | 42805.080 |
| kIRGDaeJaweon | 1597.040 |
| kIRGDaiKanwaZiten | 34768' |
| kIRGHanyuDaZidian | 42805.080 |
| kIRGKangXi | 1128.160 |
| kKangXi | 1128.160 |
| kKarlgren | 219 |
| kLau | 3508 3509 |
| kMatthews | 7300 |
| kMeyerWempe | 913 915 |
| kMorohashi | 34768' |
| kNelson | 4274 |
| kSBGY | 150.15 413.57 |
| kCantonese | jiu1 jiu3 |
| kDefinition | necessary, essential; necessity |
| kHangul | 요:0E |
| kHanyuPinlu | yào(8645) yāo(456) |
| kHanyuPinyin | 42805.080:yāo,yào,yǎo |
| kJapaneseKun | IRU MOTOMERU KANAME |
| kJapaneseOn | YOU |
| kKorean | YO |
| kMandarin | yào |
| kTang | *qiɛ̀u |
| kVietnamese | yếu |
| kXHC1983 | 1339.040:yāo 1343.020:yào |