(n): a magnitude or frequency relative to a time unit
(n): a rate (usually rapid) at which something happens
(n): the relative speed of progress or change
(n): changing location rapidly
(n): the act of changing location from one place to another
(n): the ratio of the focal length to the diameter of a (camera) lens system
(n): the relative magnitudes of two quantities (usually expressed as a quotient)
(n): a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression
(n): a drug that temporarily quickens some vital process
(n): a drug that is taken for nonmedicinal reasons (usually for mind-altering effects); drug abuse can lead to physical and mental damage and (with some substances) dependence and addiction
(v): move fast
(v): change location; move, travel, or proceed, also metaphorically
(v): move faster
(v): become more intense
(v): move very fast
(v): change location; move, travel, or proceed, also metaphorically
(v): travel at an excessive or illegal velocity
(v): change location; move, travel, or proceed, also metaphorically
(v): cause to move faster
(v): cause to change; make different; cause a transformation
Same as rolling and turning.