reliever
/rɪˈliːvər/Definitions
1. noun
A person, especially a pitcher, who enters a game to relieve another player, especially in baseball.
“The reliever came in the ninth inning to close the game.”
2. noun
A person or thing that brings relief or comfort.
“The new policy served as a reliever for the struggling company.”
3. verb
To bring relief or comfort.
“The news relieved the family’s concerns about the missing child.”
4. verb
To free or release from a burden or responsibility.
“The charity helped relieve the homeless people by providing food and shelter.”