1. countable noun
If someone is on a shortlist, for example for a job or a prize, they are one of a small group of people who have been chosen from a larger group. The successful person is then chosen from the small group.
If you've been asked for an interview you are probably on a shortlist of no more than six. [+ of]
2. verb [usually passive]
If someone or something is shortlisted for a job or a prize, they are put on a shortlist.
[mainly British]
He was shortlisted for the Nobel Prize for literature several times. [be VERB-ed + for]
Nottingham was shortlisted as Entrepreneurial University of the Year in this year's Times Higher Education Awards. [beV-ed for/as n]
[Also be V-ed + as]
https://www.collinsdictionary.com/dictionary/english/shortlist
So shortlist is now a noun?
+++++
She has been shortlisted.
She is on the shortlist.
A verb and a noun. Seems OK to me.
Can be a noun or a verb, depending on the sentence. If you’re on a shortlist, it’s a noun. If your boss is going to shortlist you to head a new department and get a $250K bonus; it’s a verb.