| English | eng-000 |
| secondary school | |
| Afrikaans | afr-000 | hoërskool |
| toskërishte | als-000 | gjimnaz |
| toskërishte | als-000 | shkollë e mesme |
| العربية | arb-000 | مَدرسه إعتداديه |
| Universal Networking Language | art-253 | secondary school(icl>school) |
| Sambahsa-mundialect | art-288 | lyceium |
| ISO 12620 | art-317 | secondarySchool |
| asturianu | ast-000 | licéu |
| asturianu | ast-000 | llicéu |
| asturianu | ast-000 | secundaria |
| brezhoneg | bre-000 | lise |
| български | bul-000 | гимназия |
| català | cat-000 | centre d’ensenyament secundari |
| català | cat-000 | ensenyament mitjà |
| català | cat-000 | institut |
| català | cat-000 | liceu |
| català | cat-000 | secundària |
| čeština | ces-000 | gymnázium |
| čeština | ces-000 | lyceum |
| čeština | ces-000 | první stupeň základní školy |
| čeština | ces-000 | sekundární škola |
| čeština | ces-000 | střední škola |
| čeština | ces-000 | vzdělávání středoškolské |
| سۆرانی | ckb-000 | قوتابخانهی دواناوهندی |
| 普通话 | cmn-000 | 中学 |
| 普通话 | cmn-000 | 中学校 |
| 普通话 | cmn-000 | 初级中学 |
| 國語 | cmn-001 | 中學 |
| 國語 | cmn-001 | 中學校 |
| 國語 | cmn-001 | 初級中學 |
| Hànyǔ | cmn-003 | chū jí zhōng xue |
| Hànyǔ | cmn-003 | zhongxue |
| Hànyǔ | cmn-003 | zhōng xue |
| dansk | dan-000 | højere uddannelse |
| dansk | dan-000 | klassetrin syv til tretten |
| Deutsch | deu-000 | AHS |
| Deutsch | deu-000 | Gymnasium |
| Deutsch | deu-000 | Hauptschule |
| Deutsch | deu-000 | Höhere Schule |
| Deutsch | deu-000 | Mittelschule |
| Deutsch | deu-000 | Mittelstufe |
| Deutsch | deu-000 | Oberschule |
| Deutsch | deu-000 | Realschule |
| Deutsch | deu-000 | Sekundarschule |
| Deutsch | deu-000 | allgemein bildende höhere Schule |
| Deutsch | deu-000 | höhere Schule |
| Deutsch | deu-000 | weiterführende Schule |
| eesti | ekk-000 | keskkool |
| ελληνικά | ell-000 | γυμνάσιο |
| ελληνικά | ell-000 | δευτεροβάθμια εκπαίδευση |
| ελληνικά | ell-000 | λύκειο |
| ελληνικά | ell-000 | σχολείο δευτεροβάθμιας εκπαίδευσης |
| ελληνικά | ell-000 | σχολείο μέσης εκπαίδευσης |
| English | eng-000 | Gymnasium |
| English | eng-000 | academy |
| English | eng-000 | big school |
| English | eng-000 | defensive backs |
| English | eng-000 | finished elementary school |
| English | eng-000 | grammar school |
| English | eng-000 | gym |
| English | eng-000 | gymnasium |
| English | eng-000 | high school |
| English | eng-000 | junior high school |
| English | eng-000 | lycee |
| English | eng-000 | lyceum |
| English | eng-000 | middle school |
| English | eng-000 | secondary education |
| English | eng-000 | secondary line |
| English | eng-000 | secondary modern school |
| American English | eng-004 | high school |
| British English | eng-005 | grammar school |
| Esperanto | epo-000 | duagrada lernejo |
| Esperanto | epo-000 | gimnazio |
| Esperanto | epo-000 | liceo |
| Esperanto | epo-000 | mezlernejo |
| euskara | eus-000 | bigarren hezkuntza |
| euskara | eus-000 | bigarren hezkuntzako ikastetxea |
| euskara | eus-000 | ikastetxe |
| euskara | eus-000 | institutu |
| euskara | eus-000 | irakaskuntza ertain |
| euskara | eus-000 | lizeo |
| suomi | fin-000 | keskiasteen koulutus |
| suomi | fin-000 | keskikoulu |
| suomi | fin-000 | lukio |
| suomi | fin-000 | lyseo |
| suomi | fin-000 | oppikoulu |
| suomi | fin-000 | toisen asteen koulu |
| suomi | fin-000 | toisen asteen oppilaitos |
| suomi | fin-000 | yläaste |
| suomi | fin-000 | yläaste ja lukio |
| français | fra-000 | athénée |
| français | fra-000 | collège |
| français | fra-000 | deuxième ligne défensive |
| français | fra-000 | enseignement secondaire |
| français | fra-000 | gymnase |
| français | fra-000 | institut |
| français | fra-000 | lycée |
| français | fra-000 | primaire |
| français | fra-000 | école |
| français | fra-000 | école secondaire |
| Gàidhlig | gla-000 | àrd-sgoil |
| Gàidhlig | gla-000 | àrdsgoil |
| Gaeilge | gle-000 | ardscoil |
| Gaeilge | gle-000 | meánscoil |
| galego | glg-000 | instituto de ensino secundario |
| yn Ghaelg | glv-000 | ard-schoill |
| yn Ghaelg | glv-000 | mean scoill |
| עברית | heb-000 | בית ספר על-יסודי |
| हिन्दी | hin-000 | माध्यमिक विद्यालय |
| hrvatski | hrv-000 | gimnazija |
| hrvatski | hrv-000 | nastava |
| hrvatski | hrv-000 | srednja škola |
| hrvatski | hrv-000 | srednjoškolske |
| magyar | hun-000 | középfokú oktatás |
| magyar | hun-000 | középiskola |
| magyar | hun-000 | általános iskola |
| Ido | ido-000 | gimnazio |
| Interlingue | ile-000 | licéo |
| interlingua | ina-000 | schola secundari |
| bahasa Indonesia | ind-000 | pendidikan menengah |
| bahasa Indonesia | ind-000 | sekolah lanjutan |
| bahasa Indonesia | ind-000 | sekolah lanjutan tingkat pertama |
| bahasa Indonesia | ind-000 | sekolah menengah |
| bahasa Indonesia | ind-000 | sekolah menengah pertama |
| íslenska | isl-000 | framhaldsskóli |
| íslenska | isl-000 | gagnfræðaskóli |
| íslenska | isl-000 | menntaskóli |
| italiano | ita-000 | ginnasio |
| italiano | ita-000 | istruzione secondaria |
| italiano | ita-000 | liceo |
| italiano | ita-000 | liceo classico |
| italiano | ita-000 | liceo scientifico |
| italiano | ita-000 | scuola media |
| italiano | ita-000 | scuola secondaria |
| italiano | ita-000 | scuola secondaria di primo grado |
| italiano | ita-000 | scuola secondaria di secondo grado |
| italiano | ita-000 | scuola secondaria inferiore |
| italiano | ita-000 | scuola secondaria superiore |
| 日本語 | jpn-000 | 中学校 |
| 日本語 | jpn-000 | 中等学校 |
| 日本語 | jpn-000 | 中等教育学校 |
| 日本語 | jpn-000 | 中高 |
| 日本語 | jpn-000 | 学園 |
| 日本語 | jpn-000 | 高校 |
| 日本語 | jpn-000 | 高等教育機関 |
| にほんご | jpn-002 | がくえん |
| にほんご | jpn-002 | こうとうきょういくきかん |
| にほんご | jpn-002 | ちゅうこう |
| にほんご | jpn-002 | ちゅうとうがっこう |
| ქართული | kat-000 | საშუალო განათლება |
| ქართული | kat-000 | საშუალო სკოლა |
| ភាសាខ្មែរ | khm-000 | សាលាទុតិយៈ |
| ភាសាខ្មែរ | khm-000 | អនុវិទ្យាល័យ |
| ikinyarwanda | kin-000 | shuri ryisumbuye |
| 한국어 | kor-000 | 국립 고등 학교 |
| 한국어 | kor-000 | 중등 학교 |
| 한국어 | kor-000 | 중등학교 |
| 한국어 | kor-000 | 중학교 |
| Lingua Franca Nova | lfn-000 | liseo |
| олык марий | mhr-000 | гимназий |
| олык марий | mhr-000 | кыдалаш учебный заведений |
| олык марий | mhr-000 | кыдалаш школ |
| македонски | mkd-000 | средно училиште |
| reo Māori | mri-000 | kura tuarua |
| Nederlands | nld-000 | Middelbare school |
| Nederlands | nld-000 | School voor voortgezet onderwijs |
| Nederlands | nld-000 | Secundaire school |
| Nederlands | nld-000 | academica |
| Nederlands | nld-000 | middelbare school |
| Nederlands | nld-000 | midelbaar onderwijs |
| Nederlands | nld-000 | school |
| Nederlands | nld-000 | school voor secundair onderwijs |
| Nederlands | nld-000 | school voor voortgezet onderwijs |
| Nederlands | nld-000 | school voor voortgezet onderwijs ( NL) |
| Nederlands | nld-000 | secundaire school |
| bokmål | nob-000 | videregående utdanning |
| occitan | oci-000 | licèu |
| فارسی | pes-000 | دبیرستان |
| فارسی | pes-000 | دبیرستان فرانسوی |
| فارسی | pes-000 | سالن بحث |
| polski | pol-000 | edukacja na poziomie średnim |
| polski | pol-000 | gimnazjum |
| polski | pol-000 | liceum |
| polski | pol-000 | szkoła średnia |
| polski | pol-000 | technikum |
| português | por-000 | Ensino Secundário |
| português | por-000 | Instituições de ensino médio |
| português | por-000 | ensino médio |
| português | por-000 | ensino secundário |
| português | por-000 | escola secundária |
| português | por-000 | instituto |
| português | por-000 | liceu |
| română | ron-000 | gimnaziu |
| română | ron-000 | liceu |
| română | ron-000 | școală secundară |
| Lugungu | rub-000 | si̱ni̱a |
| русский | rus-000 | лицей |
| русский | rus-000 | сре́дняя шко́ла |
| русский | rus-000 | среднее образование |
| русский | rus-000 | средний школа |
| русский | rus-000 | средняя школа |
| lingua siciliana | scn-000 | scola media |
| slovenčina | slk-000 | stredoškolské vzdelávanie |
| slovenščina | slv-000 | Gimnazija |
| slovenščina | slv-000 | gimnazija |
| slovenščina | slv-000 | licej |
| slovenščina | slv-000 | srednja šola |
| slovenščina | slv-000 | srednješolsko izobraževanje |
| davvisámegiella | sme-000 | nuoraidskuvla |
| español | spa-000 | IES |
| español | spa-000 | centro de educación secundaria |
| español | spa-000 | centro de enseñanza secundaria |
| español | spa-000 | enseñanza general básica |
| español | spa-000 | escuela |
| español | spa-000 | escuela primaria |
| español | spa-000 | escuela secundaria |
| español | spa-000 | instituto |
| español | spa-000 | instituto de educación secundaria |
| español | spa-000 | instituto de enseñanza secundaria |
| español | spa-000 | liceo |
| español | spa-000 | línea secundaria |
| español | spa-000 | secundaria |
| svenska | swe-000 | läroverk |
| svenska | swe-000 | mellan- och högstadium |
| svenska | swe-000 | mellanstadie |
| svenska | swe-000 | realskola |
| svenska | swe-000 | sekundärskola |
| Kiswahili | swh-000 | sekondari |
| தமிழ் | tam-000 | இடைநிலைப் பள்ளி |
| தமிழ் | tam-000 | இடைநிலைப் பாடசாலை |
| తెలుగు | tel-000 | ఉన్నత పాఠశాల |
| ภาษาไทย | tha-000 | ชั้นมัธยมศึกษา |
| ภาษาไทย | tha-000 | พิทยาลัย |
| ภาษาไทย | tha-000 | ม.ต้น |
| ภาษาไทย | tha-000 | มัธยมต้น |
| ภาษาไทย | tha-000 | มัธยมศึกษา |
| ภาษาไทย | tha-000 | มัธยมศึกษาตอนต้น |
| ภาษาไทย | tha-000 | วิทยาลัย |
| ภาษาไทย | tha-000 | โรงเรียน |
| ภาษาไทย | tha-000 | โรงเรียนมัธยม |
| ภาษาไทย | tha-000 | โรงเรียนมัธยมศึกษา |
| ትግርኛ | tir-000 | ካልኣይ ደረጃ |
| Türkçe | tur-000 | lise |
| ئۇيغۇرچە | uig-000 | ئوتتۇرا مهكتهپ |
| Uyghurche | uig-001 | ottura mektep |
| українська | ukr-000 | ліцей |
| Emakhua | vmw-000 | i-seekandare |
| Emakhua | vmw-000 | seekandare |
| Shekgalagari | xkv-000 | shekole-she |
| Bahasa Malaysia | zsm-000 | sekolah menengah |