an architectural partition with a height and length greater than its thickness; used to divide or enclose an area or to support another structure | (colloquial) the application of maximum thrust |
an embankment built around a space for defensive purposes | a fireproof (or fire-resistant) wall designed to prevent the spread of fire through a building or a vehicle |
a masonry fence (as around an estate or garden) | (computing) a security system consisting of a combination of hardware and software that limits the exposure of a computer or computer network to attack from crackers; commonly used on local area networks that are connected to the internet |
a layer of material that encloses space | |
(anatomy) a layer (a lining or membrane) that encloses a structure | |
anything that suggests a wall in structure or function or effect | |
a vertical (or almost vertical) smooth rock face (as of a cave or mountain) | |
a difficult or awkward situation | |