English abbreviations from xmr to xnn
- XMR (X-treme Movie Reviews)
- XMRA (Xena Media Review Archives)
- XMRI (Extended Range Micro Imager (Halliburton))
- XMS (Macas Airport (Edmundo Carvajal Airport))
- XMSF (eXtensible Modelling and Simulation Framework)
- XMSN (Transmission)
- XMT (Explicit Multi- Threading)
- XMT/XT/HXT (XMas Tree (Christmas Tree, the valve assembly on a production well-head))
- XMTL (Transmittal)
- XMTR (Transmitter)
- XMU (Moulins - Montbeugny Airport)
- XMV (Extreme Madness Video)
- XMW (Extreme Midget Wrestling)
- XMX (X Protocol Multiplexer)
- XMY (Yam Island Airport)
- XN ((celestial object) X-ray Nova)
- XNA (Northwest Arkansas Regional Airport)
- XNC (X Northern Captain)
- XNCNA (Xinhua New China News Agency)
- XND (X-Men: Next Dimension)
- XNF (X/ Open Federated Naming)
- XNG (Xtreme Northwest Gamers)
- XNI (Xerces Native Interface)
- XNK-1 (Keystone Experimental Trainer Aircraft)
- XNL-1 (Langley Experimental Trainer Aircraft)
- XNM (XML Network Management)
- XNN (IATA code for Xining Caojiabao Airport)