| Keyword | Description | Symbol / Usage |
| hp | Horsepower (defa, 550ft.lb./s.) | hp. |
| hpb | Horsepower (boiler) | [hpB.] |
| hpe | Horsepower (electric) | [hpE.] |
| hph2o | Horsepower (water) | [hpH2O.] |
| hpuk | Horsepower (uk) | [hpUK.] |
| hpus | Horsepower (metric) | [hpUS.] |
| kw | Kilo-watt | {kW.} |
| lumen | Lumen | [lumen.] |
| sw | Solar luminosity | [SW.] |
| w | Watt | W. |