Read the dictionary definition of buffer. All definitions for this word.
1. an implement consisting of soft material mounted on a block; used for polishing (as in manicuring)
2. a cushion-like device that reduces shock due to an impact
3. a power tool used to buff surfaces
4. (computer science) a part of RAM used for temporary storage of data that is waiting to be sent to a device; used to compensate for differences in the rate of flow of data between components of a computer system
5. an inclined metal frame at the front of a locomotive to clear the track
6. a neutral zone between two rival powers that is created in order to diminish the danger of conflict
7. (chemistry) an ionic compound that resists changes in its pH
8. add a buffer (a solution)
1. buffered saline solution for the eyes
9. protect from impact
1. cushion the blow