| airspeed | (noun) the speed of an aircraft relative to the air in which it is flying | - |
|---|
| groundspeed | (noun) the speed of an aircraft relative to the ground | - |
|---|
| speed | (noun) changing location rapidly | Synonyms: hurrying, speeding |
|---|
| (noun) a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression | Synonyms: amphetamine, pep pill, upper |
| (noun) a rate (usually rapid) at which something happens | Synonyms: fastness, swiftness |
| (noun) the ratio of the focal length to the diameter of a (camera) lens system | Synonyms: f number, focal ratio, stop number |
| (noun) distance travelled per unit time | Synonyms: velocity |
| (verb) move faster | Synonyms: accelerate, quicken, speed up |
| (verb) cause to move faster | Synonyms: accelerate, speed up |
| (verb) move very fast | Synonyms: hurry, travel rapidly, zip |
| (verb) travel at an excessive or illegal velocity | - |
| (verb) move hurridly | Synonyms: belt along, bucket along, cannonball along, hasten, hie, hotfoot, pelt along, race, rush, rush along, step on it |
| toupeed | (adjective) wearing a small hairpiece to cover partial baldness | - |
|---|