| Acronym | Definition |
|---|
| N | Number |
| N | North |
| N | No |
| N | Noun |
| N | Noon (time of day) |
| N | Neutral (automatic transmissions) |
| N | Non specified number |
| N | Number of Years |
| N | Natural Numbers |
| N | November |
| N | Normal |
| N | In |
| N | Set of Natural Numbers (math) |
| N | And |
| N | London North (postcode, United Kingdom) |
| N | Norway |
| N | Nintendo |
| N | Numeric |
| N | Nausea |
| N | Netscape |
| N | Newton(s) |
| N | Night (airfare) |
| N | Notch (type of filter) |
| N | Intuitive (Myers Briggs Type Indicator) |
| N | Nitrogen |
| N | Nano |
| N | Principal Quantum Number (used in formulae in quantum physics) |
| N | Neutron |
| N | Knight (chess) |
| N | Normality |
| N | Norse |
| N | Moles (chemistry) |
| N | Nanotechnology |
| N | Nigerian Naira (national currency) |
| N | Southwest Ontario (postal code designation, Canada) |
| N | Natus (Latin: Born) |
| N | Noggin (cable network) |
| N | Asparagine (amino acid) |
| N | Mean Motion (astronomy) |
| N | Nucleoprotein (virus protein) |
| N | Sensitive Unclassified (information) |
| N | Refractivity |
| N | True Neutral (gaming) |
| N | Nullipara |
| N | Avogadro's Number (chemistry) |
| N | Neutron Number (physics) |
| N | Unable to Locate Complainant (Alabama Public Safety Radio Code) |
| N | Not Classified But Sensitive |
| N | Occupation Regular Issues (Scott Catalogue prefix; philately) |
| N | Not for Release to Foreign Nationals |
| N | No Action Taken/Being Taken (action code) |
| N | US DoT tire speed rating (87 mph) |