mathematics [the science dealing with amounts, sizes and shapes, as explained by numbers and signs] Their mathematics test had questions on algebra and geometry.
matter [(1) anything that can be seen or felt; (2) what things are made of] Scientists are trying to measure all the matter in the universe. (1) Anything you can see or feel is made of matter. (2)
may [a word used with an action word to mean permit (1) or possible (2) ] May I go? (1) They may leave tomorrow. (2)
mayor [the chief official of a city or town government] Her father was elected mayor of Springfield.
meal [food eaten to satisfy hunger, such as dinner] Take this medicine after every meal.
mean [(1) to want to; (2) to give the idea of; (3) to have the idea of] She meant to call you on the telephone, but she forgot. (1) Tell me what you mean to do about the damage to my car. (2) I know what you mean. (3)
measure [(1) to learn the amount, size or distance of something; (2) an action taken; (3) a legislative proposal] I will measure the size of the windows. (1) What measures did you take to prevent more damage? (2) The Senate approved the measure. (3)
meat [the part of a dead animal used for food] She no longer eats meat; only vegetables, grains and fruits.
media [all public information organizations, including newspapers, television and radio] The big story in the media is the vote counting problem.
medicine [(1) a substance or drug used to treat disease or pain; (2) the science or study of treating and curing disease or improving health] She started feeling better after she began using the medicine. (1) His wife is studying medicine at the Harvard Medical School. (2)
meet [to come together with someone or something at the same time and place] We will meet here tomorrow with other members of the committee.
melt [to make a solid into a liquid by heating it] Ice melts into water at temperatures above zero degrees Celsius.
member [one of a group] He is a member of a rock band.
memorial [something done or made to honor the memory of a person or event] Have you visited the Lincoln Memorial in Washington?
memory [(1) a picture in the mind of past events; (2) the ability to remember; (3) a thing remembered] I can still see in my memory the place we used to swim. (1) He has a good memory. (2) Do you have any memory of your father before he went to war? (3)
