noun. The rate or a measure of the rate of motion, especially.

noun. Distance traveled divided by the time of travel.

noun. The limit of this quotient as the time of travel becomes vanishingly small; the first derivative of distance with respect to time.

noun. The magnitude of a velocity.

noun. Swiftness of action.

noun. undefined

noun. The act of moving rapidly.

noun. The state of being in rapid motion; rapidity.

noun. A transmission gear or set of gears in a motor vehicle.

noun. undefined

noun. A numerical expression of the sensitivity of a photographic film, plate, or paper to light.

noun. The capacity of a lens to accumulate light at an appropriate aperture.

noun. The length of time required or permitted for a camera shutter to open and admit light.

noun. A stimulant drug, especially amphetamine or methamphetamine.

noun. One that suits or appeals to a person's inclinations, skills, or character.

noun. Prosperity; luck.

intransitive verb. undefined

intransitive verb. To go, move, or proceed quickly.

intransitive verb. To drive at a speed exceeding a legal limit.

intransitive verb. To pass quickly.

intransitive verb. To move, work, or happen at a faster rate; accelerate.

intransitive verb. To be under the influence of a stimulant drug.

intransitive verb. undefined

intransitive verb. To prove successful; prosper.

intransitive verb. To get along in a specified manner; fare.

intransitive verb. To cause to move or proceed quickly; hasten.

intransitive verb. To increase the speed or rate of; accelerate. Often used with up:

intransitive verb. To further, promote, or expedite (a legal action, for example).

intransitive verb. To help to succeed or prosper; aid.

idiom. undefined

idiom. (up to speed) Operating at maximum speed.

idiom. (up to speed) Producing something or performing at an acceptable rate or level.

idiom. (up to speed) Fully informed; conversant.

noun. Success; a successful course; prosperity in doing something; good fortune; luck: used either absolutely or relatively: as, to wish one good speed in an undertaking.

noun. Apromoter of success or progress; a speeder.

noun. Rapidity of movement; quickness of motion; swiftness: also used figuratively.

noun. Rate of progress or motion (whether fast or slow); comparative rapidity; velocity: as, moderate speed; a fast or a slow rate of speed; to regulate the speed of machines.

noun. In submarine rock-drilling, a leg or beam to which the drilling apparatus is attached.

noun. Synonyms Swiftness, Rapidity, etc. (see quickness), expedition.

To advance toward a goal or a result; get on successfully; be fortunate; prosper; get on in general; make progress; fare; succeed.

To get on rapidly; move with celerity; hasten in going; go quickly; hasten in doing something; act rapidly; hurry; be quick.

To cause to advance toward success; favor the course or cause of; make prosperous.

To push forward; carry toward a conclusion; promote; advance.

To send or push forward in a course; promote the going or progress of; cause to go; aid in going.

To give high speed to; put to speed; hasten the going or progress of; make or cause to be rapid in movement; give celerity to: also used reflexively.

To give a certain (specified) speed to; also, to regulate the speed of; arrange for a certain rate of going; set for a determined rapidity.

To send off or away; put forth; despatch on a course: as, an arrow sped from the bow.

Hence To send or put out of the way; get rid of; send off; do for; in a specific use, to send out of the world; put to death; despatch; kill.

To cause to be relieved: only in the passive.

To disclose; unfold; explain.