| A | B |
| barometer | an instrument used for measuring atmospheric pressure to forecast weather |
| meter | an instrument used to measure something; the basic unit of length in the metric system |
| metronome | an instrument that sounds an adjustable number of musical beats per minute |
| speedometer | a device used for measuring the speed of and distance traveled by a vehicle |
| trigonometry | a branch of mathematics studying the relationships between angles and sides of triangles and other figures |
| multicolored | having many colors |
| multimedia | combining more than two artistic techniques or means of communication or expression, such as acting, lighting effects, and music |
| multimillionaire | a person who has at least two million dollars |
| multiple | having many parts or elements |
| multitude | a large number of persons or things |