| locum(supply, agent, replacement, alternative, alternate) |
| locum tenens(expression, supply, agent, replacement, alternate) |
| machinery |
| measure(noun, support, property, store, supply) |
| mechanism |
| mediation |
| other(noun, substitute, replacement, opportunity, substitution) |
| other fish in sea(noun, expression, idiom, substitute, replacement) |
| other fish to fry(noun, expression, idiom, substitute, replacement) |
| pinch-hitter(replacement, alternative, alternate, backup, surrogate) |
| pis aller |
| playground |
| possible choice(noun, expression, substitute, replacement, opportunity) |
| prayer(noun, call, demand, claim, appeal) |
| procurator(supply, agent, replacement, alternative, alternate) |
| proxy(supply, agent, substitute, replacement, alternate) |
| receive |
| redundancy(noun, substitute, replacement, opportunity, substitution) |
| relay(supply, agent, replacement, alternative, alternate) |
| relief(support, property, reserve, capital, replacement) |