What does AN stand for?

What does AN mean?

AN	Anna Nezabava Miscellaneous » Unclassified
AN	Annon And No Miscellaneous » Unclassified
AN	Anti Nig Miscellaneous » Unclassified
AN	Any Nucleotide Medical » Human Genome
AN	Any Number Miscellaneous » Unclassified
AN	Apalachicola Northern Railroad Regional » Railroads
AN	Applications Note Computing » Software
AN	Architecture Neutral Computing » General
AN	Archive Note Miscellaneous » Unclassified
AN	Army And Navy Governmental » Military
AN	Army Navy Governmental » Military
AN	Army Nurse Governmental » Military
AN	As Needed Miscellaneous » Unclassified
AN	Asymptotically Normal Miscellaneous » Unclassified
AN	Attribute Name Miscellaneous » Unclassified
AN	Attribute Noise Miscellaneous » Unclassified
AN	Author's Notes Miscellaneous » Unclassified
AN	Authors Note Miscellaneous » Unclassified
AN	Authors Notes Miscellaneous » Unclassified
AN	Automation, Inc. of Delaware Business » NYSE Symbols
AN	Autonetics Miscellaneous » Unclassified
AN	Auxiliary Network Miscellaneous » Unclassified
AN	Netherlands Antilles Regional » Countries
AN	Netlayer (Auxiliary, Netlayer) Miscellaneous » Ship Types