- (used in recording moves in chess) knight；(on a gear lever) neutral.
- the chemical element nitrogen.
- 1. (used in recording moves in chess) knight 17.Na4?
- 2. (on a gear lever) neutral.
- 3. (chiefly in place names) New N Zealand
- 4. newton(s).
- 5. (with reference to solutions) normal the pH was adjusted to 7.0 with 1 N HCl
- 6. North or Northern 78° N N Ireland
- 7. nuclear the N bomb
- 8. Nationalist.
- 9. Noon.
- 10. Norse.
- 11. note.
- 1. the chemical element nitrogen.