| mass transit |
a system of public transportation that carries people from place to place within a city by bus and train. |
| mast1 |
a long upright pole that rises from the bottom of a sailboat or ship to support the sails and lines. [2 definitions] |
| master |
a person with power or control. [6 definitions] |
| master bedroom |
the largest bedroom in a home, or one with a special feature such as a fireplace or attached bathroom. A master bedroom is usually used by adults and not children. |
| masterful |
having or showing the skill of a master or expert. |
| masterly |
showing the ability or skill of a master; expert. |
| masterpiece |
a work of art of the highest quality. [2 definitions] |
| mastodon |
a very large extinct mammal. Several kinds of mastodons lived in Africa, Europe, Asia, and North America tens of thousands of years ago. The last kind of mastodon became extinct at the end of the last Ice Age. Mammoths and modern elephants may have developed from earlier mastodons. |
| mat1 |
a piece of material that is used as a covering to protect a floor or other surface. [6 definitions] |
| match1 |
a thin strip of wood or cardboard with a material on the end that burns when it is struck against something. |
| match2 |
a person or thing that is very like another. [6 definitions] |
| mate1 |
a marriage partner; husband or wife. [6 definitions] |
| material |
anything used for building or making something else. [4 definitions] |
| maternal |
of, having to do with, or like a mother. [2 definitions] |
| math |
short for "mathematics." |
| mathematical |
of or having to do with mathematics. |
| mathematician |
a person who works in mathematics. |
| mathematics |
(used with a singular verb) the study of numbers, amounts, shapes, and the relationship between them, using symbols to represent these things. Arithmetic, algebra, and geometry are some branches of mathematics. |
| matinee |
a movie, play, or other performance held in the morning or afternoon. |
| matter |
all substances that contain atoms and take up space. [5 definitions] |
| mattress |
a large pad that supports the body while sleeping, made of a strong fabric filled with soft material such as cotton, hair, straw, or foam rubber. |