The Avengers Initiative
Once Carol Danvers has disappeared back into space, we see that Fury is already working on a new project to ensure Earth’s protected in her absence. The file on his computer is initially titled “The Protector Initiative” before he notices that Carol’s call sign in the Air Force was “Avengers.” A light bulb moment hits him and Fury renames his idea “the Avenger Initiative.”
Obviously, you don’t need me to explain what the Avengers Initiative is, with the concept first being introduced in 2008’s Iron Man before Fury finally got to actualize it in The Avengers. It’s a big old retcon, sure, to belatedly give Captain Marvel a key role in the superhero team, but it does explain where Fury got the name from in the first place.
If the movie had gone with Carol’s call sign from the comics, however, Iron Man and co. would have sounded much less impressive. On the page, Danvers was known as Cheeseburger in the Air Force after she infamously threw up her fast food lunch during training. I don’t know about you, but I’m looking forward to Cheeseburgers: Endgame coming out next month.