What does it mean to be civilized?

I think being civilized means acting in a civil or respectable manner. Someone who shows respect, honesty, and courtesy to someone or something is being civilized. Someone who yells, fights, scream, and acts inappropriately out in public aren’t acting civilized. I think being civilized also shows that you have some type of home training. It shows that you weren’t raised by a pack of wolves or out in the wild.