| English | eng-000 | X-band |
| English | eng-000 | XBAND |
| português | por-000 | XBAND |
| English | eng-000 | x-band |
| English | eng-000 | X-band diode phase shifter |
| English | eng-000 | X-band EPR spectrometer |
| English | eng-000 | X-band ferrite modulator |
| English | eng-000 | X-band image |
| English | eng-000 | X-band limiter attenuator |
| English | eng-000 | X-band microwave source |
| English | eng-000 | X-band parametric amplifier |
| English | eng-000 | X-band passive array |
| English | eng-000 | X-band phase shifter |
| English | eng-000 | X-band planar array |
| English | eng-000 | X-band power amplifier |
| English | eng-000 | X-band pulse transmitter |
| English | eng-000 | X-band radar |
| English | eng-000 | X-band radar beacon |
| English | eng-000 | X-band travelling wave amplifier |
| English | eng-000 | X-band triode oscillator |
| Bangi | bni-000 | xbanga |
| dižəʼəxon | zav-000 | xbanglan |
| diidza xhon | zad-000 | xbanjez |
| diidxazá | zap-000 | xbanjez |
| Silozi | loz-000 | xbanl |
| dižəʼəxon | zav-000 | xbante |
| dižəʼəxon | zav-000 | xbanyid |
| dižaʼxon | zpq-000 | xbanyid |
| diidza xhon | zad-000 | xbanyoj |
| diidxazá | zap-000 | xbanyoj |
| dižaʼxon | zpq-000 | xbanyoj |
| Bangi | bni-000 | xbanzêlã |
| filename extensions | art-335 | xbap |
| English | eng-000 | Xbaquiyalo |
| English | eng-000 | X-bar |
| English | eng-000 | Xbar |
| English | eng-000 | X-bar chart |
| English | eng-000 | X-bar structure |
| Arāmît | oar-000 | xbārtā |
| English | eng-000 | X-bar Theory |
| English | eng-000 | x-bar theory |
| dižəʼəxon | zav-000 | xbas |
| dižaʼxon | zpq-000 | xbas |
| dansk | dan-000 | XBase |
| Deutsch | deu-000 | XBase |
| English | eng-000 | XBase |
| polski | pol-000 | XBase |
| português | por-000 | XBase |
| русский | rus-000 | XBase |
| español | spa-000 | XBase |
| English | eng-000 | XBase++ |
| español | spa-000 | XBase++ |
| English | eng-000 | Xbase |
| Deutsch | deu-000 | Xbase++ |
| русский | rus-000 | Xbase++ |
| English | eng-000 | Xbase Dbfast example Ivadbsp file |
| English | eng-000 | X-BASIC |
| 日本語 | jpn-000 | X-BASIC |
| Deutsch | deu-000 | XBasic |
| English | eng-000 | XBasic |
| español | spa-000 | XBasic |
| TechTarget file types | art-336 | XBA-Timespace-X200-K200-Digital-Video-Recorder-Video-File |
| Bangi | bni-000 | xbatl~êlã |
| Bangi | bni-000 | xbawa |
| Yorno-So | dts-001 | X bày |
| nàŋ-dàmá | nzz-000 | [X báy] béndèy |
| nàŋ-dàmá | nzz-000 | [X báy] bú-m̀ dàmá |
| nàŋ-dàmá | nzz-000 | [X báy] bú-m̀ pílɛ́ |
| nàŋ-dàmá | nzz-000 | [X bày] há:sídɛ̀ há:sídí |
| tombo so | dbu-001 | X bày-nì |
| Togo-Kan | dtk-002 | X báŋá |
| Tsimshian | tsi-000 | xbaʔala |
| asturianu | ast-000 | XBB |
| brezhoneg | bre-000 | XBB |
| català | cat-000 | XBB |
| čeština | ces-000 | XBB |
| 國語 | cmn-001 | XBB |
| Deutsch | deu-000 | XBB |
| suomi | fin-000 | XBB |
| français | fra-000 | XBB |
| Frysk | fry-000 | XBB |
| Gàidhlig | gla-000 | XBB |
| Gaeilge | gle-000 | XBB |
| hrvatski | hrv-000 | XBB |
| bahasa Indonesia | ind-000 | XBB |
| 日本語 | jpn-000 | XBB |
| Nederlands | nld-000 | XBB |
| bokmål | nob-000 | XBB |
| ਪੰਜਾਬੀ | pan-000 | XBB |
| ภาษาไทย | tha-000 | XBB |
| tiếng Việt | vie-000 | XBB |
| ISO 639-3 | art-001 | xbb |
| English | eng-000 | XBBS -OS/2 XGROUP AV ZTree archiver control file |
| asturianu | ast-000 | XBC |
| brezhoneg | bre-000 | XBC |
| català | cat-000 | XBC |
| čeština | ces-000 | XBC |
| 國語 | cmn-001 | XBC |
| Deutsch | deu-000 | XBC |
| suomi | fin-000 | XBC |
| français | fra-000 | XBC |
| Frysk | fry-000 | XBC |
| Gàidhlig | gla-000 | XBC |
| Gaeilge | gle-000 | XBC |
| hrvatski | hrv-000 | XBC |
| bahasa Indonesia | ind-000 | XBC |
| 日本語 | jpn-000 | XBC |
| Nederlands | nld-000 | XBC |
| bokmål | nob-000 | XBC |
| ਪੰਜਾਬੀ | pan-000 | XBC |
| ภาษาไทย | tha-000 | XBC |
| tiếng Việt | vie-000 | XBC |
| ISO 639-3 | art-001 | xbc |
| filename extensions | art-335 | xbc |
| Peace Corps 2007 Tamazight | tzm-009 | xbc |
| ISO 639-PanLex | art-274 | xbc-000 |
| English | eng-000 | XBConnect |
| suomi | fin-000 | XBConnect |
| English | eng-000 | X-bd |
| asturianu | ast-000 | XBD |
| brezhoneg | bre-000 | XBD |
| català | cat-000 | XBD |
| čeština | ces-000 | XBD |
| 國語 | cmn-001 | XBD |
| Deutsch | deu-000 | XBD |
| suomi | fin-000 | XBD |
| français | fra-000 | XBD |
| Frysk | fry-000 | XBD |
| Gàidhlig | gla-000 | XBD |
| hrvatski | hrv-000 | XBD |
| bahasa Indonesia | ind-000 | XBD |
| 日本語 | jpn-000 | XBD |
| Nederlands | nld-000 | XBD |
| bokmål | nob-000 | XBD |
| ਪੰਜਾਬੀ | pan-000 | XBD |
| ภาษาไทย | tha-000 | XBD |
| tiếng Việt | vie-000 | XBD |
| ISO 639-3 | art-001 | xbd |
| filename extensions | art-335 | xbd |
| TechTarget file types | art-336 | XBD-Fuji-Xerox-Docuworks-file |
| filename extensions | art-335 | xbdoc |
| العربية | arb-000 | (XBD)وحدة الحساب الأوروبية |
| Togo-Kan | dtk-002 | X bê |
| ISO 639-3 | art-001 | xbe |
| filename extensions | art-335 | xbe |
| ISO 639-PanLex | art-274 | xbe-000 |
| English | eng-000 | X-beam antenna |
| English | eng-000 | x-bearing |
| English | eng-000 | X-bearing sperm |
| Bangi | bni-000 | xbebã |
| Taqbaylit | kab-000 | xbec |
| Q’eqchi’ | kek-000 | xb'e ch'o |
| English | eng-000 | X bed |
| Q’eqchi’ | kek-000 | xb'een |
| Q’eqchi’ | kek-000 | xbʼeen |
| Q’eqchi’ | kek-000 | xb'een kab'l |
| Q’eqchi’ | kek-000 | xbʼeen tel |
| Q’eqchi’ | kek-000 | xbʼehil sibʼ |
| English | eng-000 | x-behind inking |
| Deutsch | deu-000 | X-Bein |
| Limburgs | lim-000 | X-bein |
| Deutsch | deu-000 | X-Beine |
| Deutsch | deu-000 | x-beinig |
| dižəʼəxon | zav-000 | xbej |
| Malti | mlt-000 | xbejba |
| dižaʼxon | zpq-000 | xbejsede' |
| dižəʼəxon | zav-000 | xbejsedə' |
| English | eng-000 | XBEL |
| italiano | ita-000 | XBEL |
| filename extensions | art-335 | xbel |
| English | eng-000 | XBEL Bookmarks File |
| Deutsch | deu-000 | x beliebig |
| Deutsch | deu-000 | x-beliebig |
| TechTarget file types | art-336 | XBEL-XML-Bookmark-Exchange-Language |
| Yorno-So | dts-001 | [X bèmnà:] nɛ̀ |
| diidza xhon | zad-000 | xben |
| diidxazá | zap-000 | xben |
| dižəʼəxon | zav-000 | xben |
| dižaʼxon | zpq-000 | xben |
| English | eng-000 | X-bend |
| nàŋ-dàmá | nzz-000 | X béndèy |
| magyar | hun-000 | X. Benedek ellenpápa |
| Nederlands | nld-000 | X-benen |
| Nederlands | nld-000 | x-benen |
| dižəʼəxon | zav-000 | xben na' |
| dižəʼəxon | zav-000 | xben na' rizə' |
| dižəʼəxon | zav-000 | xben ṉi'a |
| dižəʼəxon | zav-000 | xbenriz |
| dižəʼəxon | zav-000 | xbenrizə' |
| dižəʼəxon | zav-000 | xbenxen |
| English | eng-000 | xbe unwell |
| English | eng-000 | X: Beyond the Frontier |
| slovenščina | slv-000 | X: Beyond the Frontier |
| filename extensions | art-335 | xbf |
| TechTarget file types | art-336 | XBF-Data-base-file |
| TechTarget file types | art-336 | XBF-Database-file |
| TechTarget file types | art-336 | XBF-Emperor-Battle-for-Dune |
| ISO 639-3 | art-001 | xbg |
| ISO 639-PanLex | art-274 | xbg-000 |
| ISO 639-3 | art-001 | xbi |
| Huilong | cng-005 | xbi |
| ISO 639-PanLex | art-274 | xbi-000 |
| hyw-001 | xbib | |
| Malti | mlt-000 | xbieha |
| Malti | mlt-000 | xbiek |
| Tsimshian | tsi-000 | xbiil |
| Gitxsanimaax | git-000 | xbil̓ |
| Nisgaʼa | ncg-000 | xbil̓ |
| Zapoteco de San Dionisio Ocotepec | ztu-000 | xbildy |
| Yorno-So | dts-001 | X bílè |
| Bangi | bni-000 | xbileke |
| čeština | ces-000 | XBill |
| Deutsch | deu-000 | XBill |
| English | eng-000 | XBill |
| suomi | fin-000 | XBill |
| français | fra-000 | XBill |
| 日本語 | jpn-000 | XBill |
| polski | pol-000 | XBill |
| русский | rus-000 | XBill |
| italiano | ita-000 | Xbill |
| Togo-Kan | dtk-002 | [X bîn] |
| filename extensions | art-335 | xbin |
| Malti | mlt-000 | xbin |
| Togo-Kan | dtk-002 | [X bîn] gàrá |
| Togo-Kan | dtk-002 | [X bîn] gɛ̀rî: |
| TechTarget file types | art-336 | XBIN-RegSupreme-License-File-Macecraft-Software |
| Togo-Kan | dtk-002 | [X bîn] sò |
| Togo-Kan | dtk-002 | [X bîn] yɛ́ sò |
| Beni | djm-003 | [X bírⁿù wò] |
| magyar | hun-000 | X-birtok |
| English | eng-000 | XBishopx |
| Deutsch | deu-000 | xBishopx |
| polski | pol-000 | xBishopx |
| Türkçe | tur-000 | xBishopx |
| dižəʼəxon | zav-000 | xbisə' |
| English | eng-000 | X-bit |
| English | eng-000 | x bit |
| English | eng-000 | x-bit |
| English | eng-000 | X BitMap |
| français | fra-000 | X BitMap |
| Tsimshian | tsi-000 | xbiyee |
| dižəʼəxon | zav-000 | xbizə' |
| ISO 639-3 | art-001 | xbj |
| filename extensions | art-335 | xbk |
| TechTarget file types | art-336 | XBK-SMART-Board-Slide-Collection-SMART-Technologies-Inc |
| TechTarget file types | art-336 | XBK-SMART-Notebook-File |
| English | eng-000 | XBL |
| français | fra-000 | XBL |
| Nederlands | nld-000 | XBL |
| polski | pol-000 | XBL |
| español | spa-000 | XBL |
| filename extensions | art-335 | xbl |
| English | eng-000 | xble |
| TechTarget file types | art-336 | XBL-Extensible-Binding-Language |
| English | eng-000 | XBLite |
| français | fra-000 | XBLite |
| English | eng-000 | XBLite Program File |
| English | eng-000 | XBLite source code file |
| TechTarget file types | art-336 | XBL-XBLite-source-code-file |
| Nederlands | nld-000 | XBM |
| ISO 639-3 | art-001 | xbm |
| filename extensions | art-335 | xbm |
| ISO 639-PanLex | art-274 | xbm-000 |
| TechTarget file types | art-336 | XBM-A-MIME-X11-bitmap-image |
| English | eng-000 | XBMC |
| English | eng-000 | XBMC Smart Playlist File |
| English | eng-000 | XBMCTex / Xbox Media Center Graphic File |
| English | eng-000 | XBMC Thumbnail Image |
| Türkçe | tur-000 | XBM Görüntüsü |
| English | eng-000 | XBM Image |
| Türkçe | tur-000 | XBM Resmi |
| ISO 639-3 | art-001 | xbn |
| filename extensions | art-335 | xbn |
| ISO 639-PanLex | art-274 | xbn-000 |
| TechTarget file types | art-336 | XBN-Cygnus-ld-scripts-file |
| ISO 639-3 | art-001 | xbo |
| Kartuli | kat-001 | xbo |
| Deutsch | deu-000 | XBoard |
| English | eng-000 | XBoard |
| français | fra-000 | XBoard |
| português | por-000 | XBoard |
| svenska | swe-000 | XBoard |
| українська | ukr-000 | XBoard |
| English | eng-000 | XBoard Join conferences file |
| English | eng-000 | x bobbin |
| English | eng-000 | x-body |
| English | eng-000 | X-Bomber |
| Yorno-So | dts-001 | X bòrù |
| Bangi | bni-000 | xbôsaki |
| Bangi | bni-000 | xbosii |
| English | eng-000 | X boson |
| suomi | fin-000 | X-bosoni |
| Bangi | bni-000 | xbötêlã |
| bokmål | nob-000 | X-box |
| davvisámegiella | sme-000 | X-box |
| luenga aragonesa | arg-000 | Xbox |
| bosanski | bos-000 | Xbox |
| català | cat-000 | Xbox |
| čeština | ces-000 | Xbox |
| 普通话 | cmn-000 | Xbox |
| 國語 | cmn-001 | Xbox |
| dansk | dan-000 | Xbox |
| Deutsch | deu-000 | Xbox |
| English | eng-000 | Xbox |
| Esperanto | epo-000 | Xbox |
| suomi | fin-000 | Xbox |
| français | fra-000 | Xbox |
| Gaeilge | gle-000 | Xbox |
| galego | glg-000 | Xbox |
| עברית | heb-000 | Xbox |
| hrvatski | hrv-000 | Xbox |
| íslenska | isl-000 | Xbox |
| italiano | ita-000 | Xbox |
| 日本語 | jpn-000 | Xbox |
| latviešu | lvs-000 | Xbox |
| Nāhuatlahtōlli | nci-000 | Xbox |
| Nederlands | nld-000 | Xbox |
| nynorsk | nno-000 | Xbox |
| bokmål | nob-000 | Xbox |
| polski | pol-000 | Xbox |
| português | por-000 | Xbox |
| română | ron-000 | Xbox |
| русский | rus-000 | Xbox |
| español | spa-000 | Xbox |
| srpski | srp-001 | Xbox |
| svenska | swe-000 | Xbox |
| Tagalog | tgl-000 | Xbox |
| Türkçe | tur-000 | Xbox |
| tiếng Việt | vie-000 | Xbox |
| 廣東話 | yue-000 | Xbox |