| A | B |
| hemisphere | (n) half of the world or globe |
| megalith | (n) a large prehistoric stone monument |
| megalopolis | (n) very large city or urban area |
| multifaceted | (adj) having many facets, as in precious stones; having many talents |
| multinational | (adj) having interests in many foreign countries; many nations |
| multitude | (n) a great number of people or things; a crowd |
| polychromatic | (adj) having many colors |
| polytheistic | (adj) the belief in more than one religion or gods |
| semimonthly | (adj) something happening twice a month |
| semitransparent | (adj) partially allowing light to pass through |