(squash, racquetball) The wall at the back of a racquetball or squash court, directly opposite the front wall. / Used other than figuratively or idiomatically: see back, wall.

Disaster is imminent.

plural of wall plug

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

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

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

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

plural of wall-pecker

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.