- Adjective. (obsolete) Taking away or removing.
- Adjective. (grammar) Applied to one of the cases of the noun in some languages, the fundamental meaning of the case being removal, separation, or taking away.
- Adjective. (context, engineering) Sacrificial, wearing away or being destroyed in order to protect the underlying, as in ablative paints used for antifouling.
- Noun. (grammar) The ablative case.