reliever
//rɪˈliːvər//
Noun
relieverSingular
relieversPlural
1
A person or thing that relieves pain, distress, or difficulty.
This medicine is an effective pain reliever.
2
A medication or substance that alleviates symptoms, especially pain.
This pain reliever works quickly to reduce headaches.
3
In baseball, a pitcher who enters the game to replace another pitcher.
The manager called in a reliever in the seventh inning.
4
A person who takes over a duty or job from another.
The reliever arrived to take over the night shift.