Someone or something that buffs, such as a machine used to clean hard floors or polish shoes and boots.

(chemistry) A solution used to stabilize the pH (acidity) of a liquid.

(computing) A portion of memory set aside to temporarily store data, often before it is sent to an external device or as it is received from an external device.

Anything used to isolate or minimize the effect of one thing on another, such as a mechanical device, routine or storage medium in telecommunications, a cushioning device in rail transport, an isolating circuit in electronics, a buffer zone or state in politics, or a gap that separates two things.

(UK, nautical, slang) The chief boatswain's mate.

(colloquial) A good-humoured, slow-witted fellow, usually an elderly man.

Use a buffer or buffers to isolate or minimize the effects of one thing on another, and in the context of video games, it also refers to queuing up an input to be performed immediately once possible.

(computing) To store data in memory temporarily.

(chemistry) To maintain the acidity of a solution near a chosen value by adding an acid or a base.

Comparative form of buff: more buff.