The metal barrier to help prevent trains from running off the end of the track.
A gap that isolates or separates two things.
A machine with rotary brushes, passed over a hard floor to clean it.
An isolating circuit, often an amplifier, used to minimize the influence of a driven circuit on the driving circuit.
A machine for polishing shoes and boots.
A good-humoured, slow-witted fellow, usually an elderly man.
A routine or storage medium used to compensate for a difference in rate of flow of data, or time of occurrence of events, when transferring data from one device to another.
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.
A solution used to stabilize the pH (acidity) of a liquid.
Anything used to maintain slack or isolate different objects.
A buffer zone (such as a demilitarized zone) or a buffer state.
The chief boatswain's mate.
A device on trains and carriages designed to cushion the impact between them.
To use a buffer or buffers; to isolate or minimize the effects of one thing on another.
To maintain the acidity of a solution near a chosen value by adding an acid or a base.
To store data in memory temporarily.
To press; urge; compel.
To use threats; act or speak menacingly; threaten.
A person or object that is regarded as a danger; a menace.
An indication of potential or imminent danger.
An expression of intent to injure or punish another.