What does BK stand for?

What does BK mean?

BK	Back Medical » Physiology
BK	Back Community » Housing
BK	Back Governmental » NASA
BK	Burger King Business » Firms
BK	Black Knight Miscellaneous » Chess
Bk	Berkelium Academic & Science » Electronics
Bk	Berkelium Academic & Science » Chemistry
BK	Black Knights Governmental » Military
BK	Bobby Knight Community » Famous
BK	Below the Knee Medical » Physiology
BK	Bank of New York, Inc. Business » NYSE Symbols
BK	Background Knowledge Miscellaneous » Unclassified
BK	Ben Keen Community » Music
BK	Blood Killa Community » Law
BK	British Knights Governmental » Military
BK	Ben Kweller Miscellaneous » Unclassified
BK	Bad Kid Community » Law
BK	Bad Kitty Miscellaneous » Names and Nicknames
BK	Black Kat Miscellaneous » Unclassified
BK	Black Khaki Miscellaneous » Colors
BK	Bleached Kraft Miscellaneous » Unclassified
BK	Brian Kinney Miscellaneous » Unclassified
BK	Black Kitty Miscellaneous » Names and Nicknames
BK	Blood Killer Governmental » Police
BK	Boogie Knight Miscellaneous » Funnies