| SPI | sports equipment consisting of a sharp point on the sole of a shoe worn by athletes |
|---|---|
| SPI | a long metal nail |
| SPI | any holding device consisting of a long sharp-pointed object |
| SPI | a long sharp-pointed implement (wood or metal) |
| SPI | a sharp-pointed projection along the top of a fence or wall |
| SPI | a transient variation in voltage or current |
| SPI | (botany) an indeterminate inflorescence bearing sessile flowers on an unbranched axis |
| SPI | fruiting spike of a cereal plant especially corn |
| SPI | add alcohol beverages |
| SPI | bring forth a spike or spikes, as of flowers, such as hyacinths |
| SPI | secure with spikes |
| SPI | pierce with a sharp stake or point |