This is the 4250th most frequent Spanish word.
nfl
"NFL" is not a Spanish word; it refers to the National Football League in English.
Here, 'NFL' refers directly to National Football League, used as a specific noun.
Me gusta ver los partidos de la NFL los domingos.
I like watching NFL games on Sundays.
In this case, 'NFL' is used as an entity associated with professional football.
Mi amigo quiere ser jugador profesional en la NFL.
My friend wants to become a professional player in the NFL.
Here, 'NFL' describes the organization that holds the Super Bowl event.