| A | B |
| mediocre | only of medium (inferior) quality |
| megaphone | a device that projects a loud voice |
| melancholy | a state of dark emotions |
| memorial | related to remembering a person or event |
| immerse | to put or dip something into a liquid |
| Mesoamerica | Middle America |
| metamorphosis | a complete change of form |
| metric | measured |
| microscope | a device to see very small things |
| midterm | middle of a term in school |