noun a person or thing that takes or can take the place of another
Synonymsreplacement
noun an athlete who plays only when a starter on the team is replaced
noun someone who takes the place of another (as when things get dangerous or difficult)
verb put in the place of another; switch seemingly equivalent items
adjective capable of substituting in any of several positions on a team
Synonymsutility
Similarsecondary
Source: WordNet 3.1, Princeton University
