| English | eng-000 |
| degree of hardness | |
| 普通话 | cmn-000 | 硬度 |
| Deutsch | deu-000 | Härtegrad |
| English | eng-000 | hardness solidness |
| English | eng-000 | hardnessl |
| English | eng-000 | rigidity |
| English | eng-000 | stiffiness |
| русский | rus-000 | градус жёсткости |
| русский | rus-000 | степень твёрдости |