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Definition buffer in British English

buffer noun

[countable] noun
/ˈbʌfə(r)/
1

something that protects another thing by being between it and something else that could harm it

Example

The air bag acts as a buffer between the driver and the steering wheel.

Synonyms and related words
1.1

one of two metal springs at the front and back of a train and at the end of a railway line that helps to protect the train if it crashes

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2

an area in a computer's memory where information is kept temporarily when you are sending it from one system or program to another

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3

a man, especially an old man, who you think is slightly stupid but not unpleasant

Example

a harmless old buffer

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4

something you use for polishing something, for example metal or your fingernails

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Definition buffer in British English