English abbreviations from n to na
- N (Normal)
- N. (Nonas ("Nones"); or Numero ("Number"))
- N/A (Not Applicable)
- N/C (Normally Closed)
- N/K/A (Now Known As)
- N·m, Nm (Newton metre)
- N/O (Normally Open)
- N/T ((Aa) No text)
- N1 (Low Pressure rotor (spool) speed (see Jet engine))
- N-1 (Navy Component Manpower or Personnel Staff Officer)
- N2 (High Pressure rotor (spool) speed (see Jet engine))
- N-2 (Director of Naval Intelligence)
- N2O (nitrous oxide)
- N-3 (Navy Component Operations Staff Officer)
- N3F (National Fantasy Fan Federation)
- N-4 (Navy Component Logistics Staff Officer)
- N-5 (Navy Component Plans Staff Officer)
- N-6 (Navy Component Communications Staff Officer)
- NA (Narcotics Anonymous)