Babies that are born dead.
This is a sad and serious thing.
Examples:
The hospital keeps track of how many stillborns there are each year.
The parents were very sad when they found out their baby was stillborn.
She felt very sad when she heard about the stillborns.
The stillborns are like sleeping babies, but they don't wake up.
In some places, there are too many stillborns, and people are trying to help.
The stillborns are like little angels, but they don't get to play.