In American football, an audible is when the quarterback, just before the start of the play, changes the called play at the line of scrimmage. Essentially, it's a last-minute adjustment! The QB might notice something https://xem-bng-trc-tip-ko-nh-ci559312.blogdal.com/42511429/a-is-an-signal-in-american-football-a-simple-explanation