What does Nub stand for?

Nubes - Clouds - of Aristophanes - Classical studies (OCD)

National Union of Busmen - British

Navy Uniform Board (DNAB)

Net Units Billed (TIMI)

Northumberland Mines Ltd. - Toronto Stock Exchange symbol

North University Building (SAUS)

Nubira - NCIC car model code

Number Boat LLC, Fort Lauderdale, FL - Manufacturer code for watercraft hull identification number (USCG)

Nupbikha - Language code (ETLW)

Nubian - MARC language code - Library of Congress (LCCP)