| English | eng-000 |
| classification symbol | |
| 普通话 | cmn-000 | 入级符号 |
| 普通话 | cmn-000 | 分类号码 |
| 普通话 | cmn-000 | 分类符 |
| English | eng-000 | class code |
| English | eng-000 | class number |
| English | eng-000 | class symbol |
| English | eng-000 | classifier |
| English | eng-000 | specificator |
| English | eng-000 | specifier |
| русский | rus-000 | классификационный индекс МПК |