| noun | someone who takes the place of another (as when things get dangerous or difficult) “the star had a stand-in for dangerous scenes” |
| noun | a person who reduces the intensity (e.g., of fears) and calms and pacifies “a reliever of anxiety” |
| noun | a pitcher who does not start the game |
| stand in | verb | be a substitute |
| substitute | adjective | serving or used in place of another |
| substitute | verb | act as a substitute |
| relieve | verb | free someone temporarily from his or her obligations |
| fill in | verb | be a substitute |
| allay | verb | lessen the intensity of or calm |
| comfort | verb | give moral or emotional strength to |