a person who commiserates with someone who has had misfortune
"After hearing about her car accident, my friend became such a genuine comforter as she sat and listened to me vent for hours."
device used for an infant to suck or bite on
"The baby fell asleep quickly after chewing on his new blue comforter during naptime."
A person who comforts someone who is suffering.
"After hearing about her losses, Sarah became a comforter for her grieving friend by simply holding her hand and listening to her story."
The Holy Spirit, the Holy Ghost.
"He felt a profound sense of peace knowing that the comforter was guiding him through his darkest moments."