What does JAX stand for?

Chicago School of Professional Psychology, Chicago, IL - OCLC symbol (OCLC)

Jacksonville - Florida - Airport symbol (OAG)

J. Alexander's Corp. - NYSE symbol (SPSG)

Jambi Malay - Language code (ETLW)

JanAir, Inc. - ICAO designator (FAAC)

Java, Apache, and XML (TLAA)

John A. Ziegler, Hope, IN - Manufacturer code for watercraft hull identification number (USCG)

Mister Jax Fashions, Inc. - Toronto Stock Exchange symbol