| Togo-Kan | dtk-002 | X s |
| English | eng-000 | X-S |
| English | eng-000 | XS |
| español | spa-000 | XS |
| English | eng-000 | X’S |
| English | eng-000 | X’s |
| filename extensions | art-335 | xs |
| Nuxálk | blc-000 | xs |
| Mawo | cng-001 | xs |
| Peace Corps 2007 Tamazight | tzm-009 | xs |
| Qiāngyǔ Púxīhuà | qxs-003 | Xs3 |
| Maragus | mrs-000 | x s3 |
| filename extensions | art-335 | xs3 |
| Taoping | cng-000 | xs3 |
| English | eng-000 | XS-3 code |
| lagwan | kot-000 | Xs~3ni |
| TechTarget file types | art-336 | XS3-XESS-Worksheet-Applied-Information-Systems-Inc |
| filename extensions | art-335 | xs4 |
| English | eng-000 | XS4ALL |
| Nederlands | nld-000 | XS4ALL |
| TechTarget file types | art-336 | XS4-XESS-Worksheet-Applied-Information-Systems-Inc |
| TechTarget file types | art-336 | XS4-XESS-worksheet-file |
| filename extensions | art-335 | xs5 |
| TechTarget file types | art-336 | XS5-XESS-Worksheet-Applied-Information-Systems-Inc |
| TechTarget file types | art-336 | XS5-XESS-worksheet-file |
| Yorno-So | dts-001 | X sà: |
| Axamb—Maxbaxo | ahb-002 | xsa |
| ISO 639-3 | art-001 | xsa |
| Kwikapa | coc-000 | xsa |
| Mafa—Matakam-Mofa | maf-003 | xsa |
| Rerep | pgk-000 | xsa |
| Burmbar | vrt-000 | xsa |
| Burmbar Lepaxsivir | vrt-001 | xsa |
| Burmbar Vartavo | vrt-002 | xsa |
| diidza xhon | zad-000 | xsa |
| diidxazá | zap-000 | xsa |
| dižəʼəxon | zav-000 | xsa |
| dižaʼxon | zpq-000 | xsa |
| Old Avestan | ave-001 | xsā- |
| Riff | rif-000 | xsʼā |
| dižəʼəxon | zav-000 | xša' |
| ISO 639-PanLex | art-274 | xsa-000 |
| ISO 639-PanLex | art-274 | xsa-001 |
| ISO 639-PanLex | art-274 | xsa-002 |
| dižəʼəxon | zav-000 | xsa'a |
| dižəʼəxon | zav-000 | xsab |
| Togo-Kan | dtk-002 | X sá bàŋà |
| Walo | dbw-000 | [X sáddàm] zɛ́ |
| Old Avestan | ave-001 | xšaēta- |
| Old Avestan | ave-001 | xšafnya- |
| TechTarget file types | art-336 | XS-Age-of-Empires-3-Map-AI-Generator |
| English | eng-000 | X Sagittarii |
| español | spa-000 | X Sagittarii |
| Yorno-So | dts-001 | [X sà:] ì: |
| Yorno-So | dts-001 | X sà:-[ì-́nɛ̀] |
| Old Avestan | ave-001 | xšam |
| brezhoneg | bre-000 | X-SAMPA |
| 普通话 | cmn-000 | X-SAMPA |
| 國語 | cmn-001 | X-SAMPA |
| Deutsch | deu-000 | X-SAMPA |
| English | eng-000 | X-SAMPA |
| français | fra-000 | X-SAMPA |
| magyar | hun-000 | X-SAMPA |
| italiano | ita-000 | X-SAMPA |
| 日本語 | jpn-000 | X-SAMPA |
| ქართული | kat-000 | X-SAMPA |
| Hangungmal | kor-001 | X-SAMPA |
| polski | pol-000 | X-SAMPA |
| português | por-000 | X-SAMPA |
| русский | rus-000 | X-SAMPA |
| davvisámegiella | sme-000 | X-SAMPA |
| español | spa-000 | X-SAMPA |
| svenska | swe-000 | X-SAMPA |
| українська | ukr-000 | X-SAMPA |
| svenska | swe-000 | X-SAMPA fonetisk notation |
| 普通话 | cmn-000 | X-SAMPA 音标 |
| 國語 | cmn-001 | X-SAMPA 音標 |
| English | eng-000 | Xsan |
| italiano | ita-000 | Xsan |
| 日本語 | jpn-000 | Xsan |
| español | spa-000 | Xsan |
| svenska | swe-000 | Xsan |
| English | eng-000 | X’s and O’s |
| lagwan | kot-000 | Xs~anten |
| Avestan | ave-000 | xSap |
| Old Avestan | ave-001 | xšap |
| Samala | inz-000 | xšap |
| Āriya | peo-001 | xšap |
| Old Avestan | ave-001 | xšap- |
| Avestan | ave-000 | xṣ̌ap |
| Old Avestan | ave-001 | xšapan |
| Avestan | ave-000 | xṣ̌apara |
| dižəʼəxon | zav-000 | xsapj |
| français | fra-000 | Xsara |
| español | spa-000 | Xsara |
| Beni | djm-003 | [X sàrìyà] yá só |
| Yorno-So | dts-001 | X sàrⁿà |
| Togo-Kan | dtk-002 | [X sàrɛ̀:] yɛ́ sà |
| suomi | fin-000 | X-säteily |
| suomi | fin-000 | x-säteily |
| Old Avestan | ave-001 | xšathra |
| Old Avestan | ave-001 | xšathrya |
| Old Avestan | ave-001 | xšāy |
| Old Avestan | ave-001 | xšaya |
| Old Avestan | ave-001 | xšaya- |
| Türkçe | tur-000 | x_sayı |
| Walo | dbw-000 | [X sáɗɗàm] zɛ́ |
| Old Avestan | ave-001 | xšaθra- |
| Old Avestan | ave-001 | xšaθrī- |
| ISO 639-3 | art-001 | xsb |
| filename extensions | art-335 | xsb |
| ISO 639-PanLex | art-274 | xsb-000 |
| ISO 639-PanLex | art-274 | xsb-001 |
| italiano | ita-000 | X-sbarra Teoria |
| TechTarget file types | art-336 | XSB-Sokoban-Level-File |
| TechTarget file types | art-336 | XSB-XACT-Sound-Bank |
| TechTarget file types | art-336 | XSB-XQ-Xsetup-backup-file |
| ISO 639-3 | art-001 | xsc |
| filename extensions | art-335 | xsc |
| ISO 639-PanLex | art-274 | xsc-000 |
| English | eng-000 | X Scale |
| 普通话 | cmn-000 | XScale |
| 國語 | cmn-001 | XScale |
| Deutsch | deu-000 | XScale |
| English | eng-000 | XScale |
| français | fra-000 | XScale |
| italiano | ita-000 | XScale |
| 日本語 | jpn-000 | XScale |
| svenska | swe-000 | XScale |
| українська | ukr-000 | XScale |
| English | eng-000 | Xscape |
| français | fra-000 | Xscape |
| bokmål | nob-000 | Xscape Dome |
| Deutsch | deu-000 | X-SCID |
| English | eng-000 | X-SCID |
| suomi | fin-000 | X-SCID |
| English | eng-000 | X-Scissor |
| TechTarget file types | art-336 | XSC-Microsoft-Visual-Studio-XSC-file |
| English | eng-000 | xScope Frames File |
| English | eng-000 | xScope Guides File |
| English | eng-000 | XScreenSaver |
| français | fra-000 | XScreenSaver |
| English | eng-000 | Xscript Data Packet |
| English | eng-000 | Xscript Game Registry |
| English | eng-000 | Xscript Package |
| English | eng-000 | Xscript package |
| English | eng-000 | Xscript script |
| TechTarget file types | art-336 | XSC-Transcribe-Transcription-Document-Seventh-String-Software |
| TechTarget file types | art-336 | XSC-X3-Technology-Pressure-Imaging-Software-file |
| TechTarget file types | art-336 | XSC-XML-Schema |
| TechTarget file types | art-336 | XSC-Xscript-script |
| TechTarget file types | art-336 | XSC-XVI32-script-file |
| čeština | ces-000 | XSD |
| 普通话 | cmn-000 | XSD |
| Deutsch | deu-000 | XSD |
| English | eng-000 | XSD |
| français | fra-000 | XSD |
| עברית | heb-000 | XSD |
| italiano | ita-000 | XSD |
| 日本語 | jpn-000 | XSD |
| Hangungmal | kor-001 | XSD |
| español | spa-000 | XSD |
| ISO 639-3 | art-001 | xsd |
| filename extensions | art-335 | xsd |
| lagwan | kot-000 | Xsd$a |
| TechTarget file types | art-336 | XSD-Autodesk-existing-ground-cross-section-data-file |
| Deutsch | deu-000 | XSD-Datei |
| English | eng-000 | .xsd file |
| TechTarget file types | art-336 | XSD-XML-Schema |
| TechTarget file types | art-336 | XSD-XML-schema-definition-file |
| TechTarget file types | art-336 | XSD-XML-schema-description-file |
| 한국어 | kor-000 | .xsd 파일 |
| 日本語 | jpn-000 | .xsd ファイル |
| 普通话 | cmn-000 | .xsd 文件 |
| 國語 | cmn-001 | .xsd 檔案 |
| Perge Tegu | djm-004 | X sé: |
| Axamb | ahb-000 | xse |
| ISO 639-3 | art-001 | xse |
| Luoxiang | cng-007 | xse |
| Weigu | cng-011 | xse |
| dižəʼəxon | zav-000 | xše' |
| dižaʼxon | zpq-000 | xše' |
| ISO 639-PanLex | art-274 | xse-000 |
| English | eng-000 | XSECT |
| English | eng-000 | xsect |
| English | eng-000 | X-section |
| English | eng-000 | x-section of river diversion |
| dižəʼəxon | zav-000 | xsed |
| Bangi | bni-000 | xseise bibwele |
| Türkçe | tur-000 | X şeklinde |
| Türkçe | tur-000 | X şeklinde geçmek |
| Türkçe | tur-000 | X şeklindeki şey |
| English | eng-000 | x selector |
| English | eng-000 | x-selector |
| hrvatski | hrv-000 | x-selektor |
| تونسي | aeb-000 | xSEm |
| dižaʼxon | zpq-000 | xsen |
| dižəʼəxon | zav-000 | xsentav |
| Yaghnobi | yai-000 | XSEp |
| dižəʼəxon | zav-000 | xsepiy |
| Taqbaylit | kab-000 | xser |
| English | eng-000 | X-Series |
| italiano | ita-000 | X-Series |
| English | eng-000 | X-series |
| English | eng-000 | X-series patent |
| English | eng-000 | X.-series Recommendation |
| English | eng-000 | X series recommendations of CCITT |
| dižəʼəxon | zav-000 | xseriy |
| 普通话 | cmn-000 | Xserve |
| 國語 | cmn-001 | Xserve |
| English | eng-000 | Xserve |
| suomi | fin-000 | Xserve |
| français | fra-000 | Xserve |
| íslenska | isl-000 | Xserve |
| 日本語 | jpn-000 | Xserve |
| bokmål | nob-000 | Xserve |
| slovenčina | slk-000 | Xserve |
| español | spa-000 | Xserve |
| svenska | swe-000 | Xserve |
| English | eng-000 | X-Server |
| English | eng-000 | X-server |
| 普通话 | cmn-000 | Xserve RAID |
| 國語 | cmn-001 | Xserve RAID |
| English | eng-000 | Xserve RAID |
| 日本語 | jpn-000 | Xserve RAID |
| español | spa-000 | Xserve RAID |
| English | eng-000 | X Server Constant Screen Image Bitmap |
| English | eng-000 | XSession |
| dižəʼəxon | zav-000 | xset |
| English | eng-000 | Xset plugins file |
| English | eng-000 | Xset Setup Program Bin File |
| English | eng-000 | X-setting |
| English | eng-000 | XSetup - plugin Header |
| English | eng-000 | Xset wizards file |
| Bangi | bni-000 | xsêu |
| Wabo | cng-008 | xsexse |
| filename extensions | art-335 | xsf |
| TechTarget file types | art-336 | XSF-data-Microsoft-InfoPath-file |
| TechTarget file types | art-336 | XSF-Milnta-APL-Transfer-Function |
| English | eng-000 | XS game file |
| Tsimshian | tsi-000 | xsgyiik |
| ISO 639-3 | art-001 | xsh |
| ISO 639-PanLex | art-274 | xsh-000 |
| Old Avestan | ave-001 | xshaêsha |
| Old Avestan | ave-001 | xshaêta |
| Old Avestan | ave-001 | xshaêtahe |
| Old Avestan | ave-001 | xshaêtem |
| Old Avestan | ave-001 | xshaêtô |
| Old Avestan | ave-001 | xshafna |
| Old Avestan | ave-001 | xshafne |
| Samala | inz-000 | xshap |
| Old Avestan | ave-001 | xshapan |
| Old Avestan | ave-001 | xshapanem |
| Old Avestan | ave-001 | xshapanô |
| English | eng-000 | X-shape |
| English | eng-000 | X-shape bit |
| English | eng-000 | X-shaped |
| English | eng-000 | x shaped |
| English | eng-000 | x-shaped |
| English | eng-000 | X-shaped filament |
| English | eng-000 | X-shaped frame |
| English | eng-000 | X-shaped spread |
| Old Avestan | ave-001 | xshapô |
| čeština | ces-000 | X Shared Memory Extension |
| Old Avestan | ave-001 | xshathra |
| Old Avestan | ave-001 | xshathrâ |
| Old Avestan | ave-001 | xshathrahe |
| Old Avestan | ave-001 | xshathrahyâ |
| Old Avestan | ave-001 | xshathrâi |
| Old Avestan | ave-001 | xshathrât |
| Old Avestan | ave-001 | xshathrem |
| Old Avestan | ave-001 | xshathremcâ |
| Old Avestan | ave-001 | xshathrî |
| Old Avestan | ave-001 | xshathrîm |
| Old Avestan | ave-001 | xshathrinãm |
| Old Avestan | ave-001 | xshathrishva |
| Old Avestan | ave-001 | xshathrôi |
| Old Avestan | ave-001 | xshathrya |
| Old Avestan | ave-001 | xshathryô |
| Old Avestan | ave-001 | xshayamna |
| Old Avestan | ave-001 | xshayamnem |
| Old Avestan | ave-001 | xshayamnô |
| Old Avestan | ave-001 | xshayãs |
| Hànyǔ | cmn-003 | X she4 xian4 |
| Hànyǔ | cmn-003 | X she4 xian4 duan4 ceng2 cheng2 xiang4 |
| Hànyǔ | cmn-003 | X she4 xian4 duan4 ceng2 sao4 miao2 yi2 |
| Hànyǔ | cmn-003 | X she4 xian4 fang2 hu4 |
| Hànyǔ | cmn-003 | X she4 xian4 guan3 |
| Hànyǔ | cmn-003 | X she4 xian4 guang1 dian4 zi3 guang1 pu3 xue2 |
| Hànyǔ | cmn-003 | X she4 xian4 jin1 xiang1 xue2 |
| Hànyǔ | cmn-003 | X she4 xian4 jing1 ti3 xue2 |
| Hànyǔ | cmn-003 | X she4 xian4 pu3 xue2 |
| Hànyǔ | cmn-003 | X she4 xian4 tan4 shang1 |
| Hànyǔ | cmn-003 | X she4 xian4 tian1 wen2 xue2 |
| Hànyǔ | cmn-003 | X she4 xian4 xing2 mao4 xue2 |
| Hànyǔ | cmn-003 | x she4 xian4 yan2 jiu1 |