a federation of North American labor unions that merged with the Congress of Industrial Organizations in 1955
"The AFL and CIO merged to form today's largest union organization in the United States."
The game of Australian rules football.
"The afl season begins in March with matches played across Australia."
In plain English: AFL stands for Australian Football League, which is the top professional league for playing Aussie rules football down under.
"The afl on his forehead was covered in dirt from playing outside all day."
Initialism of Australian Football League.
"The AFL announced new rules for the upcoming season to improve player safety."