A bye in sports is the position of a participant in a tournament who advances to the next round without playing
This information is taken form http://www.chacha.com/question/what-does-bye-stand-for
bye
Bye stands for the week that that team doesn't play.
American Football Conference.
Arena football league or American football league or American Federation of Labor
It stands for National Football League.
American Football Conference National Football Conference
Australian Football League
Since this is in the American Football category, I would say it stands for either American Football League, or Arena Football League.American football league
quarter back
bye-bye for now
In American football, 'S' is a safety. In association football, 'S' may be used for striker.
there is a bye week so a team can rest and train because they play football every week.