miles per hour

Thesaurus

Noun	1.	miles per hour - the ratio of the distance traveled (in miles) to the time spent traveling (in hours) mph rate - a magnitude or frequency relative to a time unit; "they traveled at a rate of 55 miles per hour"; "the rate of change was faster than expected"
	2.	miles per hour - a speedometer reading for the momentary rate of travel mph meter reading, reading, indication - a datum about some physical state that is presented to a user by a meter or similar instrument; "he could not believe the meter reading"; "the barometer gave clear indications of an approaching storm"