Speed

English Meaning

Prosperity in an undertaking; favorable issue; success.

1. Physics The rate or a measure of the rate of motion, especially:
2. Physics Distance traveled divided by the time of travel.
3. Physics The limit of this quotient as the time of travel becomes vanishingly small; the first derivative of distance with respect to time.
4. Physics The magnitude of a velocity.
5. Swiftness of action.
6. The act of moving rapidly.
7. The state of being in rapid motion; rapidity.
8. A transmission gear or set of gears in a motor vehicle.
9. A numerical expression of the sensitivity of a photographic film, plate, or paper to light.
10. The capacity of a lens to accumulate light at an appropriate aperture.
11. The length of time required or permitted for a camera shutter to open and admit light.
12. Slang A stimulant drug, especially amphetamine or methamphetamine.
13. Slang One that suits or appeals to a person's inclinations, skills, or character: Living in a large city is not my speed.
14. Archaic Prosperity; luck.
15. To cause to go, move, or proceed quickly; hasten.
16. To increase the speed or rate of; accelerate: speed up a car; sped production.
17. To wish Godspeed to.
18. To further, promote, or expedite (a legal action, for example).
19. Archaic To help to succeed or prosper; aid.
20. To go, move, or proceed quickly: sped to the rescue.
21. To drive at a speed exceeding a legal limit: was speeding on the freeway.
22. To pass quickly: The days sped by. The months have sped along.
23. To move, work, or happen at a faster rate; accelerate: His pulse speeded up.
24. Archaic To prove successful; prosper.
25. Archaic To get along in a specified manner; fare.
26. up to speed Operating at maximum speed.
27. up to speed Producing something or performing at an acceptable rate or level.
28. up to speed Informal Fully informed of or conversant with: I'm not up to speed on these issues yet.