noun, verb, -tut⋅ed, -tut⋅ing, adjective | 1. | a person or thing acting or serving in place of another. |
| 2. | (formerly) a person who, for payment, served in an army or navy in the place of a conscript. |
| 3. | Grammar. a word that functions as a replacement for any member of a class of words or constructions, as do in He doesn't know but I do. |
| 4. | to put (a person or thing) in the place of another. |
| 5. | to take the place of; replace. |
| 6. | Chemistry. to replace (one or more elements or groups in a compound) by other elements or groups. |
| 7. | to act as a substitute. |
| 8. | of or pertaining to a substitute or substitutes. |
| 9. | composed of substitutes. |
