What does "nfl" mean?

Initialism of no free lunch, applied to various restricting theorems.

Nfl

Common synonyms include: governing body, league administration, league based, league compliant, league data, league office.

/ɛn ɛf ɛl/ name, noun

name, noun ·Uncommon ·Advanced level

Noun

1
Initialism of no free lunch, applied to various restricting theorems. abbreviation, alt-of, initialism, uncountable
"First off, let us be clear that the No Free Lunch theorems that underwrite the displacement problem apply with perfect generality—NFL applies to any information that might supplement a blind search, and not just to fitness functions."
2
American football. UK, uncountable
"Soon after Boston and London were over, two other dramatic races were playing out in my head [...] just as we enjoy the long term implications of a match result in baseball, NFL or soccer."

Proper Noun

1
Initialism of National Football League. abbreviation, alt-of, initialism
"Amanda Gorman, the nation’s first-ever youth poet laureate who gained national acclaim at President Joe Biden’s inauguration, will recite an original poem before Super Bowl LV, NFL Commissioner Roger Goodell announced on Wednesday."
2
Initialism of Newfoundland and Labrador. abbreviation, alt-of, initialism

"Who do you think is the best coach in the NFL?"