Definition of WALL

  1. (noun)an architectural partition with a height and length greater than its thickness; used to divide or enclose an area or to support another structure
  2. (noun)anything that suggests a wall in structure or function or effect
  3. (noun)(anatomy) a layer (a lining or membrane) that encloses a structure
  4. (noun)a difficult or awkward situation
  5. (noun)a vertical (or almost vertical) smooth rock face (as of a cave or mountain)
  6. (noun)a layer of material that encloses space
  7. (noun)a masonry fence (as around an estate or garden)
  8. (noun)an embankment built around a space for defensive purposes
  9. (verb)surround with a wall in order to fortify