a rock immediately adjacent to a vein or fault
an architectural partition with a height and length greater than its thickness; used to divide or enclose an area or to support another structure
a lump or mass of hard consolidated mineral matter
anything that suggests a wall in structure or function or effect
material consisting of the aggregate of minerals like those making up the Earth's crust
(anatomy) a layer (a lining or membrane) that encloses a structure
a difficult or awkward situation
a vertical (or almost vertical) smooth rock face (as of a cave or mountain)
a masonry fence (as around an estate or garden)
