| Lintel | |
| Horizontal timber or stone over door | |
| Long ell | |
| An ell is an old measurement of about 45 inches. Long ell refers to a very long cloth of twill weave with a worsted (combed) warp and woollen (carded) weft. | |
| Mausoleum | |
| A funerary building and/or a large, grand tomb usually holding several members of a family | |
| Metis | |
| People of mixed European and Native American race. | |
| Metamorphism | |
| The change in the character of a rock. Usually as a result of increasing temperature and/or pressure. | |
| Mica Schists | |
| Schists are medium grained crystalline metamorphic rocks which generally display distinct banding. The rock can be easily split along these bands. Mica is a platy rock forming mineral. | |
| Middle Ages | |
| The period between 1066 and 1485. | |
| Mullion | |
| Vertical bar dividing lights of a window | |
| Nap | |
| The surface of a cloth where the fibres have been fluffed up from the base of the cloth to give a softer finish that covers the woven structure of the cloth. | |
| Navajo | |
| Native people who occupy northern New Mexico, a portion of southern Utah, and part of northern Arizona. Today they are the largest Native community in the United States. | |
| Navigation | |
| Canal | |
| Nawabs of Awadh | |
| Nawabs were the governors of Awadh, a province of the Mughal Empire in India, from 1719 to 1858. | |
| Obviate | |
| Prevent or forestall | |
