| Ethnologue Language Names | art-330 | Dual |
| Deutsch | deu-000 | Dual |
| English | eng-000 | Dual |
| Dual | grt-004 | Dual |
| العربية | arb-000 | dual |
| luenga aragonesa | arg-000 | dual |
| Universal Networking Language | art-253 | dual |
| ISO 12620 | art-317 | dual |
| asturianu | ast-000 | dual |
| Turrubal | aus-011 | dual |
| bosanski | bos-000 | dual |
| català | cat-000 | dual |
| dansk | dan-000 | dual |
| Dyirbal | dbl-000 | dual |
| Deutsch | deu-000 | dual |
| English | eng-000 | dual |
| euskara | eus-000 | dual |
| français | fra-000 | dual |
| bèle fòòr | fvr-000 | dual |
| Gàidhlig | gla-000 | dual |
| Gaeilge | gle-000 | dual |
| galego | glg-000 | dual |
| hrvatski | hrv-000 | dual |
| Interlingue | ile-000 | dual |
| interlingua | ina-000 | dual |
| bahasa Indonesia | ind-000 | dual |
| Lingua Franca Nova | lfn-000 | dual |
| português | por-000 | dual |
| română | ron-000 | dual |
| español | spa-000 | dual |
| srpski | srp-001 | dual |
| svenska | swe-000 | dual |
| Fornsvenska | swe-001 | dual |
| łéngua vèneta | vec-000 | dual |
| čeština | ces-000 | duál |
| slovenčina | slk-000 | duál |
| Kanembu | kbl-000 | dúal |
| Glottocode | art-327 | dual1243 |
| Glottocode | art-327 | dual1244 |
| Glottocode | art-327 | dual1245 |
| English | eng-000 | dual 32-bit processors |
| Kiswahili | swh-000 | -duala |
| Afrikaans | afr-000 | Duala |
| ISO 639-3 Reference Names | art-289 | Duala |
| ISO 639-3 Print Names | art-290 | Duala |
| ISO 639-3 Inverted Names | art-291 | Duala |
| Ethnologue Primary Language Names | art-323 | Duala |
| Glottolog Languoid Names | art-326 | Duala |
| Ethnologue Language Names | art-330 | Duala |
| azərbaycanca | azj-000 | Duala |
| Deutsch | deu-000 | Duala |
| duálá | dua-000 | Duala |
| English | eng-000 | Duala |
| Wikang Filipino | fil-000 | Duala |
| français | fra-000 | Duala |
| Frysk | fry-000 | Duala |
| Gàidhlig | gla-000 | Duala |
| Srpskohrvatski | hbs-001 | Duala |
| bahasa Indonesia | ind-000 | Duala |
| lietuvių | lit-000 | Duala |
| Lëtzebuergesch | ltz-000 | Duala |
| latviešu | lvs-000 | Duala |
| Nederlands | nld-000 | Duala |
| polski | pol-000 | Duala |
| português | por-000 | Duala |
| español | spa-000 | Duala |
| srpski | srp-001 | Duala |
| türkmençe | tuk-000 | Duala |
| Türkçe | tur-000 | Duala |
| oʻzbek | uzn-000 | Duala |
| Bahasa Malaysia | zsm-000 | Duala |
| ISO 12620 | art-317 | duala |
| asturianu | ast-000 | duala |
| azərbaycanca | azj-000 | duala |
| bosanski | bos-000 | duala |
| dansk | dan-000 | duala |
| dolnoserbska reč | dsb-000 | duala |
| eesti | ekk-000 | duala |
| English | eng-000 | duala |
| Esperanto | epo-000 | duala |
| føroyskt | fao-000 | duala |
| suomi | fin-000 | duala |
| galego | glg-000 | duala |
| hrvatski | hrv-000 | duala |
| hornjoserbšćina | hsb-000 | duala |
| magyar | hun-000 | duala |
| italiano | ita-000 | duala |
| kriolu kabuverdianu | kea-000 | duala |
| nynorsk | nno-000 | duala |
| bokmål | nob-000 | duala |
| polski | pol-000 | duala |
| português | por-000 | duala |
| lingua rumantscha | roh-000 | duala |
| română | ron-000 | duala |
| slovenčina | slk-000 | duala |
| slovenščina | slv-000 | duala |
| español | spa-000 | duala |
| srpski | srp-001 | duala |
| svenska | swe-000 | duala |
| oʻzbek | uzn-000 | duala |
| Kambera | xbr-000 | duala |
| Iamalele | yml-000 | duala |
| davvisámegiella | sme-000 | duála |
| julevsámegiella | smj-000 | duála |
| duálá | dua-000 | duálá |
| íslenska | isl-000 | dúala |
| Esperanto | epo-000 | duala bazo |
| Esperanto | epo-000 | dualabazo |
| English | eng-000 | dual abelian variety |
| Kara | leu-000 | dua labu |
| English | eng-000 | dual accelerometer |
| English | eng-000 | dual access |
| English | eng-000 | dual-access memory |
| Gàidhlig | gla-000 | dualach |
| Gaeilge | gle-000 | dualach |
| English | eng-000 | dual action |
| English | eng-000 | dual address |
| English | eng-000 | dual address stack |
| azərbaycanca | azj-000 | duala dili |
| Ɛʋɛgbɛ | ewe-000 | dualagbe |
| English | eng-000 | dual agency |
| English | eng-000 | dual agent attack |
| English | eng-000 | dual-agent combination |
| English | eng-000 | dual-agent system |
| English | eng-000 | dual-agent therapy |
| Gaeilge | gle-000 | dualaí |
| Glottolog Languoid Names | art-326 | Dualaic |
| English | eng-000 | dual airbrake system |
| English | eng-000 | dual air pump |
| toskërishte | als-000 | dualaisht |
| latviešu | lvs-000 | duālais steks |
| Kambera | xbr-000 | dualaku |
| English | eng-000 | Duala language |
| English | eng-000 | dual algebra |
| français | fra-000 | dual algébrique |
| English | eng-000 | dual algorithm |
| English | eng-000 | dual alliance |
| English | eng-000 | dual all integer |
| English | eng-000 | dual alpha spectrometer |
| Bahasa Malaysia | zsm-000 | dualam |
| Glottolog Languoid Names | art-326 | Duala-Malimba |
| Uyghurche | uig-001 | duala milliti |
| English | eng-000 | dual amplification |
| English | eng-000 | dual amplification circuit |
| English | eng-000 | dual amplifier |
| English | eng-000 | dual amplitude |
| English | eng-000 | Dual Analog Controller |
| italiano | ita-000 | Dual Analog Controller |
| svenska | swe-000 | Dual Analog Controller |
| English | eng-000 | dual analogy |
| English | eng-000 | dual angle |
| azərbaycanca | azj-000 | dualanmış |
| English | eng-000 | dual ansatz |
| English | eng-000 | dual antenna |
| Esperanto | epo-000 | Dualao |
| English | eng-000 | dual approach |
| English | eng-000 | dual approximation |
| Türkçe | tur-000 | dualar |
| English | eng-000 | dual-arc welding |
| English | eng-000 | dual area piston |
| Türkçe | tur-000 | dualarla defetmek |
| English | eng-000 | dual arm ATC system |
| English | eng-000 | dual aspect |
| English | eng-000 | dual aspect convention |
| English | eng-000 | dual aspectism |
| English | eng-000 | dual-aspect Shinto |
| Deutsch | deu-000 | Duala-Sprachen |
| français | fra-000 | dû à la station debout |
| Uyghurche | uig-001 | duala tili |
| English | eng-000 | dual-attached |
| English | eng-000 | dual-attached concentrator |
| English | eng-000 | dual-attached station |
| English | eng-000 | dual-attached unit |
| English | eng-000 | dual auto-alternate sweep |
| English | eng-000 | dual autoland system |
| English | eng-000 | dual-automatic radio compass |
| English | eng-000 | dual automaton |
| English | eng-000 | dual automorphism |
| English | eng-000 | dual a well |
| English | eng-000 | dual-axis inclinometer |
| English | eng-000 | dual-axis NC control |
| English | eng-000 | dual-axis positioning |
| English | eng-000 | dual-axis presetter |
| français | fra-000 | Dual-Axis Radiographic Hydrodynamics Test Facility |
| English | eng-000 | Dual-Axis Radiographic Hydrodynamic Test Facility |
| English | eng-000 | dual axis turret |
| English | eng-000 | dual-axis universal joint |
| English | eng-000 | dual axle |
| English | eng-000 | dual axle ratios |
| English | eng-000 | Dualayer distillate process |
| English | eng-000 | Dualayer solution |
| English | eng-000 | dual-azimuth indicator |
| English | eng-000 | dual-band mirror |
| English | eng-000 | dual-band radio |
| English | eng-000 | dual-band satellite |
| English | eng-000 | dual banking system |
| English | eng-000 | dual base |
| English | eng-000 | dual-based |
| English | eng-000 | dual-base oscilloscope |
| English | eng-000 | dual bases |
| English | eng-000 | dual-base transistor |
| English | eng-000 | dual basing-point system |
| English | eng-000 | dual basis |
| Pite Sami | sje-000 | dualbat |
| English | eng-000 | dual-battery capability |
| English | eng-000 | dual beam |
| English | eng-000 | dual-beam |
| English | eng-000 | dual-beam betatron |
| English | eng-000 | dual-beam bridge |
| English | eng-000 | dual-beam CMM. |
| English | eng-000 | dual beam CRT |
| English | eng-000 | dual beam interferometer |
| English | eng-000 | dual-beam interferometry |
| English | eng-000 | dual-beam laser |
| English | eng-000 | dual-beam LDDM system |
| English | eng-000 | dual-beam observation |
| English | eng-000 | dual-beam oscillograph |
| English | eng-000 | dual beam oscilloscope |
| English | eng-000 | dual-beam oscilloscope |
| English | eng-000 | dual-beam retrofit multisatellite feed |
| English | eng-000 | dual-beam synchronoscope |
| English | eng-000 | dual beam synchroscope |
| English | eng-000 | dual-beam synchroscope |
| English | eng-000 | dualbeam synchroscope |
| English | eng-000 | dual-beam system |
| English | eng-000 | dual-beam technique |
| English | eng-000 | dual bed |
| English | eng-000 | dual-bed dehumidifier |
| English | eng-000 | dual belt lehr |
| English | eng-000 | dual benchboard |
| English | eng-000 | dual beta decay |
| English | eng-000 | dual bite |
| English | eng-000 | dual block |
| English | eng-000 | dual block gate valve |
| English | eng-000 | dual-block randomization |
| English | eng-000 | dual block valve |
| English | eng-000 | dual blowout preventer stack system |
| English | eng-000 | dual body actuator |
| English | eng-000 | dual body switcher |
| English | eng-000 | dual Boolean operation |
| English | eng-000 | dual boolean operation |
| English | eng-000 | dual boost gage |
| Deutsch | deu-000 | Dual-Boot |
| English | eng-000 | dual boot |
| dansk | dan-000 | dual-boot |
| Nederlands | nld-000 | dual-boot |
| English | eng-000 | dualboot |
| français | fra-000 | dualboot |
| English | eng-000 | dual-bore cluster |
| English | eng-000 | dual-bore cluster drilling |
| English | eng-000 | dual-box slasher |
| English | eng-000 | dual brake-control |
| English | eng-000 | dual brake dynamometer |
| English | eng-000 | dual braking system |
| English | eng-000 | dual-braking system |
| English | eng-000 | dual brand loaylty |
| English | eng-000 | dual buckle |
| English | eng-000 | dual budgets |
| English | eng-000 | dual-buffered |
| English | eng-000 | dual bundle |
| English | eng-000 | dual burner |
| English | eng-000 | dual bus |
| English | eng-000 | dual-bus |
| English | eng-000 | dual cabin pick-up |
| English | eng-000 | dual cable |
| English | eng-000 | dual-cable system |
| English | eng-000 | dual cache |
| English | eng-000 | Dual Caliper |
| English | eng-000 | dual caliper |
| English | eng-000 | dual canal watch |
| English | eng-000 | dual-capable item |
| English | eng-000 | dual-capable system |
| English | eng-000 | dual capacitor |
| English | eng-000 | dual capacitor motor |
| English | eng-000 | dual-capacitor motor |
| English | eng-000 | dual capacity |
| English | eng-000 | dual capacity system |
| English | eng-000 | dual-capacity system |
| English | eng-000 | dual carburetor |
| English | eng-000 | dual card |
| English | eng-000 | dual-career couple |
| English | eng-000 | dual career couples |
| English | eng-000 | dual carriage |
| English | eng-000 | dual carriage print |
| English | eng-000 | dual carriage-way |
| English | eng-000 | dual carriageway |
| English | eng-000 | dual-carriage-way |
| Universal Networking Language | art-253 | dual carriageway(icl>divided carriageway) |
| English | eng-000 | dual carriageway road |
| English | eng-000 | dual casing string |
| English | eng-000 | dual-cassettes deck |
| English | eng-000 | dual cast cylinder |
| English | eng-000 | dual catastrophe |
| English | eng-000 | dual category |
| English | eng-000 | dual-cavity laser |
| English | eng-000 | dual cell |