If someone is shortlisted, it means they are on a list of people who might get a job or a prize.
Being shortlisted is a good thing because it means you have a chance to get something special.
Examples:
She was shortlisted for the award.
The shortlisted candidates will be interviewed next week.
The shortlisted players are very happy.
I hope I get shortlisted for the job!
Being shortlisted for the team is a big deal.
He was shortlisted for the big prize.