Glossary

This glossary contains information on terms, phrases and abbreviations used by the Aviation industry. While this list does not include all aviation terminology, it is the purpose of this glossary to aid the general viewer in better understanding aviation terms as it pertains to content on this website. A full list of aviation terminology can be found here.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

N

Nondirectional radio beacon (NDB).

A ground-based radio transmitter that transmits radio energy in all directions.

NOTAM.

See Notice to Airmen.

Notice to Airmen (NOTAM).

A notice filed with an aviation authority to alert aircraft pilots of any hazards en route or at a specific location. The authority in turn provides means of disseminating relevant NOTAMs to pilots.

NRP.

See National Route Program.

NSA.

See National Security Area.

NTSB.

See National Transportation Safety Board.

NWS.

National Weather Service.