buffer

noun

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

Also useful for “buffer”:Unscrambler— Rearrange the letters in “buffer”