| substitute(noun, person, cover, reserve, substitute) |
| surrogate(noun, person, thing, copy, substitute) |
| alternate(noun, person, copy, reserve, substitute) |
| relief(noun, reserve, replacement, alternative, alternate) |
| replacement(noun, adjective, person, reserve, substitute) |
| stand-in(noun, adjective, person, reserve, substitute) |
| backup(noun, adjective, copy, reserve, substitute) |
| double(noun, adjective, reserve, substitute, replacement) |
| pinch hitter(noun, expression, cover, informal, substitute) |
| sub(noun, adjective, informal, reserve, substitute) |
| understudy(noun, cover, reserve, substitute, replacement) |
| alternative(noun, substitute, replacement, alternate, stand-in) |
| deputy(noun, cover, reserve, substitute, replacement) |
| dummy(noun, substitute, replacement, alternative, alternate) |
| proxy(noun, substitute, replacement, alternative, alternate) |
| reliever |
| representative(noun, substitute, replacement, alternative, alternate) |
| counterfeit(noun, substitute) |
| imitation(noun, substitute) |
| standby(noun, cover, reserve, substitute, replacement) |