What's "a.k.a" mean?

Native speaker’s answer
Rebecca
"A.k.a," also written as "A.K.A" or "aka," is the abbreviation for the phrase "also known as." So, here, the title of this person is Admiral Kazansky, but his call sign is "Iceman," so that's what he's also known as! Ex: My favorite superhero is Spider-Man, aka Peter Parker. Ex: You weren't supposed to know about the party. But Caitlin, a.k.a miss-spoils-surprises, couldn't keep it a secret.