Other forms: earned; earning; earns
When you earn something, you gain it as a result of your actions. You can earn your friend's gratitude by rescuing her pet kitten from a tree.
Earning has to do with things people get through their own efforts or behavior. A good friend earns your trust. A dishonest coworker might earn a reputation as a liar. This word is also used in financial contexts. If someone asks how much you earned last year, they're asking how much money you made at your job.