To become faster; to begin to move more quickly.
To enable a student to finish a course of study in less than normal time.
Grow; increase.
To quicken the natural or ordinary progression or process of.
To cause to move faster; to quicken the motion of; to add to the speed of.
To cause a change of velocity.
To hasten, as the occurrence of an event.
Accelerated; quickened; hastened; hurried.
Synonym of hit the nail on the head
Used other than figuratively or idiomatically: see nail, it.