What does ZF. stand for?

What does ZF. mean?

ZF	Continental Shelf (Northwest European), French sector Regional » Countries
ZF	Zachman Framework for Enterprise Architecture Computing » Software
ZF	Zachman Framework for Enterprise Architecture Computing » Networking
ZF	Zahnradfabrik Friedrichshafen Business » Firms
ZF	Zahnradfabrik of Friedrischafen Business » Firms
zf.	Zarf International » Turkish
ZF	Zebra Finch Medical » Veterinary
ZF	Zeer Fraal (Netherlands coin grade equivalent to Very Fine) Miscellaneous » Coins
ZF	Zelda Forever Miscellaneous » Funnies
ZF	Zermelo-Fraenkel Academic & Science » Mathematics
ZF	Zero Field Academic & Science » Physics
ZF	Zero Flag Computing » Hardware
ZF	Zero Forcing Academic & Science » Mathematics
ZF	Zero Funds Governmental » Military
ZF	Zigen Fund Community » Non-Profit Organizations
ZF	Ziraat FaküLtesi International » Turkish
ZF	Zone Flow Academic & Science » Electronics
ZF	Zone of Fire Governmental » Military
ZF	Zweig Fund, Inc. Business » NYSE Symbols