accelerate

from The American Heritage® Dictionary of the English Language, 5th Edition.

• intransitive verb To increase the speed of: synonym: speed.
• intransitive verb Physics To change the velocity of.
• intransitive verb To cause to occur sooner than expected.
• intransitive verb To cause to develop or progress more quickly.
• intransitive verb To reduce the time required for (an academic course, for example); compress into a shorter period.
• intransitive verb To make it possible for (a student) to finish an academic course faster than usual.
• intransitive verb To move or act faster.

from The Century Dictionary.

• To assign a date earlier than the true or real one; give an earlier date to; antedate.
• To make quicker; cause to move or advance faster; hasten; add to the velocity of; give a higher rate of progress to: as, to accelerate motion or the rate of motion; to accelerate the transmission of intelligence; to accelerate the growth of a plant, or the progress of knowledge.
• To bring nearer in time; bring about, or help to bring about, more speedily than would otherwise have been the case: as, to accelerate the ruin of a government; to accelerate death.
• To become faster; increase in speed.

from the GNU version of the Collaborative International Dictionary of English.

• transitive verb To cause to move faster; to quicken the motion of; to add to the speed of; -- opposed to retard.
• transitive verb To quicken the natural or ordinary progression or process of
• transitive verb To hasten, as the occurence of an event.
• transitive verb (Mech.) motion with a continually increasing velocity.
• transitive verb the force which causes accelerated motion.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb transitive To cause to move faster; to quicken the motion of; to add to the speed of.
• verb transitive To quicken the natural or ordinary progression or process of.
• verb transitive, physics To cause a change of velocity.
• verb transitive To hasten, as the occurrence of an event.
• verb transitive, education To enable a student to finish a course of study in less than normal time.
• verb intransitive To become faster; to begin to move more quickly.
• verb intransitive Grow; increase.
• verb obsolete Alternative form of accelerated.
• adjective rare Accelerated; quickened; hastened; hurried.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb cause to move faster
• verb move faster