English abbreviations from xrml to xsv
- XRML (eXtensible Rights Markup Language)
- XRQ (Fairchild RQ-2 Experimental Transport Aircraft)
- XRR (Ross River Airport)
- XRS (Extensible Radio Specification)
- XRT (Xtremely Rough Terrain)
- XRY (Jerez Airport (La Parra Airport))
- XS (Xiaolin Showdown)
- XSA (XML Software Autoupdate)
- XSB (Single Barrier Unit map location)
- XSC (South Caicos Airport)
- XSD (Tonopah Test Range Airport (FAA: TNX))
- XSE (Sebba Airport)
- XSF (Xtreme Special Forces)
- XSH (XML Editing Shell)
- XSI (South Indian Lake Airport)
- XSIE (X/Open System Interface Extension)
- XSL (Extensible Stylesheet Language)
- XSL-FO (Extensible Stylesheet Language Formatting Objects)
- XSLT (Extensible Stylesheet Language Transformations)
- XSM (XML Stream Machine)
- XSM-73 (Fairchild Bull Goose Experimental Long Range Decoy missile)
- XSN (XBox Sports Network)
- XSO (Siocon Airport)
- XSP (Seletar Airport)
- XSQ (XML Streaming Query Engine)
- XSQC (XML Schema Quality Checker)
- XSS (Cross-Site Scripting)
- XSU (XML Schema Upgrade)
- XSUS (XML Schema Upgrade Service)
- XSV (XML Schema Validator)
