| Term | Description |
| Naiant, Natant | Represented horizontally across the field, as if swimming toward the dexter side of the shield. Applied to any fish excepting the flying fish and shell fish. |
| Naissant | Rising or coming forth. Applied to any living creature represented as issuing out of a fesse or other ordinary |
| Nebuly | 1. Composed of undulations, like the wavy edges of clouds. 2. A shield or bearing divided by such lines. 3. A wavy line of partition, or by which ordinaries and subordinaries may be bounded. |
| Nowed | Knotted: tied in a knot, as a serpent or the tail of a lion. |
| Nowyed | Applied to a projection not in the center of a cross, but in its branches |