SUBSTITUTE

Definition

1. adjective capable of substituting in any of several positions on a team. — synonyms: utility(a), substitute(a)
2. adjective serving or used in place of another. — synonyms: alternate, alternative
3. adjective artificial and inferior. — synonyms: ersatz
4. noun a person or thing that takes or can take the place of another. — synonyms: replacement
5. noun an athlete who plays only when a starter on the team is replaced. — synonyms: reserve, second-stringer
6. noun someone who takes the place of another (as when things get dangerous or difficult). — synonyms: stand-in, relief, reliever, backup, backup_man, fill-in
7. verb put in the place of another. — synonyms: replace, interchange, exchange
8. verb be a substitute. — synonyms: sub, stand_in, fill_in
9. verb act as a substitute. — synonyms: deputize, deputise, step_in