| Gaeilge | gle-000 |
| meánscoil | |
| 普通话 | cmn-000 | 中学 |
| 國語 | cmn-001 | 中學 |
| Cymraeg | cym-000 | ysgol uwchradd |
| Deutsch | deu-000 | Mittelschule |
| Deutsch | deu-000 | Oberschule |
| ελληνικά | ell-000 | λύκειο |
| English | eng-000 | secondary school |
| Esperanto | epo-000 | gimnazio |
| suomi | fin-000 | yläaste ja lukio |
| français | fra-000 | collège |
| français | fra-000 | lycée |
| français | fra-000 | école secondaire |
| Gàidhlig | gla-000 | àrd-sgoil |
| Gaeilge | gle-000 | ardscoil |
| yn Ghaelg | glv-000 | mean scoill |
| magyar | hun-000 | középiskola |
| Ido | ido-000 | gimnazio |
| íslenska | isl-000 | framhaldsskóli |
| íslenska | isl-000 | menntaskóli |
| italiano | ita-000 | ginnasio |
| italiano | ita-000 | liceo |
| italiano | ita-000 | liceo classico |
| italiano | ita-000 | liceo scientifico |
| 日本語 | jpn-000 | 中学校 |
| 日本語 | jpn-000 | 高校 |
| ភាសាខ្មែរ | khm-000 | សាលាទុតិយៈ |
| ភាសាខ្មែរ | khm-000 | អនុវិទ្យាល័យ |
| македонски | mkd-000 | средно училиште |
| Nederlands | nld-000 | middelbare school |
| Nederlands | nld-000 | school voor voortgezet onderwijs |
| Nederlands | nld-000 | secundaire school |
| فارسی | pes-000 | دبیرستان |
| português | por-000 | ensino médio |
| português | por-000 | ensino secundário |
| română | ron-000 | gimnaziu |
| română | ron-000 | liceu |
| română | ron-000 | școală secundară |
| русский | rus-000 | сре́дняя шко́ла |
| español | spa-000 | escuela secundaria |
| español | spa-000 | secundaria |
| Kiswahili | swh-000 | sekondari |
| Bahasa Malaysia | zsm-000 | sekolah menengah |