NFL

n. Stands for National Football League. This is the main professional league for American football in the USA.

n. Abbreviation for National Football League. Refers to the highest professional level of American football in the United States.

“Many people in the US spend their Sundays watching NFL games on TV.”

“The NFL has expanded its global reach by hosting several regular-season games in London and Munich each year.”

American English

n. a common way for people in the UK to refer to the sport of American football.

n. A metonymic use where the league name represents the entire sport of American football. This usage is common in British English to distinguish it from association football.

“He started playing NFL at a local club in London last year.”

“While soccer remains the dominant sport, interest in the NFL has grown significantly among British sports fans over the last decade.”

British English · Informal

n. Stands for no free lunch. It is a rule in math and computing that says you cannot get something for nothing.

n. Abbreviation for no free lunch. Refers to a set of theorems in mathematical optimisation and computing which state that no single algorithm performs better than all others across every possible problem.

“The professor explained the NFL theorem during our computer science lecture.”

“In the context of machine learning, the NFL theorem implies that we must make assumptions about the data to choose an effective model.”

Technical · Academic