English abbreviations from gmrt to gn
- GMRT ((telescope) Giant Meter Radio Telescope)
- GMS (Gun Management System)
- GMSA (Gunners Mate Seaman Apprentice)
- GMSC (Good Morning South Columbia)
- GMSEP (Georgia Media Specialist Evaluation Program)
- GMSFP (George Mason Society Freedom Project)
- GMSN (Gunners Mate Seaman)
- GMSS (Global Mobile Satellite Services)
- GMT (Greenwich Mean Time)
- GMTA (General Motors Technical Academy)
- GMTI (Ground Moving Target Indicator)
- GMTK (General Mechanics Tool Kit)
- GMU (Greenville Downtown Airport)
- GMV (Monument Valley Airport (FAA: UT25))
- GMW (General Magnet Wire)
- GMZ (La Gomera Airport)
- gn (Guaraní language (ISO 639-1 code))
