| hrvatski | hrv-000 |
| c | |
| català | cat-000 | c |
| 普通话 | cmn-000 | 光速 |
| English | eng-000 | C |
| English | eng-000 | c |
| English | eng-000 | light speed |
| English | eng-000 | speed of light |
| suomi | fin-000 | C |
| suomi | fin-000 | c |
| suomi | fin-000 | valonnopeus |
| français | fra-000 | vitesse de la lumière |
| galego | glg-000 | c |
| hrvatski | hrv-000 | brzina svjetlosti |
| bahasa Indonesia | ind-000 | C |
| italiano | ita-000 | c |
| italiano | ita-000 | ci |
| italiano | ita-000 | velocità della luce |
| 日本語 | jpn-000 | c |
| 日本語 | jpn-000 | 光速 |
| 日本語 | jpn-000 | 光速度 |
| 日本語 | jpn-000 | ｃ |
| polski | pol-000 | c |
| polski | pol-000 | lorenc |
| português | por-000 | velocidade da luz |
| slovenščina | slv-000 | C |
| slovenščina | slv-000 | c |
| slovenščina | slv-000 | hitrost svetlobe |
| español | spa-000 | C |
| ภาษาไทย | tha-000 | ซี |
| ภาษาไทย | tha-000 | ตัวซี |
| ภาษาไทย | tha-000 | อัตราเร็วของแสง |
| Bahasa Malaysia | zsm-000 | C |