What does FUJ stand for?

Front Upset Jaw (MSA)

Fujairah Aviation Centre - United Arab Emirates - ICAO designator (FAAC)

Fujitsu - Japan (NITA)

Fuji Yacht Builders Ltd., Napa, CA - Manufacturer code for watercraft hull identification number (USCG)

Fukue - Japan - Airport symbol (OAG)

Ko - Language code (ETLW)