English abbreviations from green to grits
- GREEN (Global Rivers Environmental Education Network)
- GREET (Group To Renew And Enhance Effective Teaching)
- GREM (Grenade Rifle Entry Munition)
- grep ([search] Globally for Regular Expression, Print [lines])
- GREQ (Graduate Record Examination Quantitative score)
- GRF (Gray Army Airfield (Fort Lewis))
- GRFC (Glasgow Rangers Fan Club)
- GRG (Gardez Airport)
- GRH (Garuahi Airport)
- GRHV (Grand Rapids Home for Veterans)
- GRI (Central Nebraska Regional Airport)
- GRIA (Greater Remington Improvement Association)
- GRid (Global Release Identifier, a music industry identifier from the RIAA and IFPI)
- GridCo (Any company running a transmission grid (electricity). Also known as a TransCo (US) (electricity))
- GRIM (Glass Refractive Index Measurement)
- GRIN (Global Resource Information Network)
- GRINSCH (GRaded INdex Separate Confinement Heterostructure)
- GRIP (Godanaw Rehabilitation Integrated Project)
- GRIT (Graffiti Removal And Intervention Team)
- GRITS (Gals Racing In The South)