English abbreviations from speed to spi
- SPEED (Schoolchildren Pedestrians And Equestrians Enjoy Dropmore)
- SPEEDEX (System-wide Project for Electronic Equipment at Depots- Extended)
- SPEF (Single Program Element Funding)
- SPEG (Social Program Evaluation Group)
- SPEL (Spectralog)
- SPELL (Spelling Performance Evaluation For Language And Literacy)
- SPEM (Software Process Engineering Metamodel)
- SPETC (Solid Propellant Electro-thermal-Chemical)
- SPEW (Society for Protection of Elvish Welfare)
- SPF (Black Hills Airport (Clyde Ice Field))
- SPFM (Single Phase Flow Meter)
- SPFT (Sussex Partnership Foundation Trust)
- SPG (self-propelled gun)
- SPGC (Spring Valley Golf Course)
- SPGRE (Summer Pre-Graduate Research Experience)
- SPH (self-propelled howitzer)
- SPHB (St. Peter's Home for Boys)
- SPHE (Sony Pictures Home Entertainment)
- SPI (Abraham Lincoln Capital Airport)