(UK) A fixing that allows screws to be fitted into masonry walls, a dowel or screw anchor. / (US) An electric socket.

Any interface through which there is no transfer of heat or entropy

A fortification of stone and turf built by the Roman Empire across what is now the Central Belt of Scotland.

A fortification of stone and timber built by the Roman Empire across the width of what is now northern England.

A person who participated in bringing down the Berlin Wall in November 1989.

A popular music production technique, developed in the 1960s, in which a number of musicians perform the same instruments or parts in unison and the resulting sound is re-recorded in an echo chamber.

A motordrome. / A form of moshing in which audience members divide into two halves and run toward each other.

(medicine) The set of tissues that bound the thoracic cavity, including the rib cage, fascia, muscles etc.

(informal, humorous) a power supply which plugs directly to the mains socket, without an intervening cord, and via a cord connects to power the device it is used for

A firearm that does not function or is considered unsafe to shoot, usually an older firearm that appears antique or ornate in design, hung on the wall of a room as decoration.