WALL (1340 AM) is a radio station licensed to Middletown, New York that serves Orange County, New York. WALL is owned by Charles Williamson, through licensee Digital Radio Broadcasting, Inc., and broadcasts at 1340 kHz with 1,000 watts, daytime and nighttime, both nondirectional.

A wall is a structure that defines an area, carries a load, or provides shelter or security. There are many kinds of walls:

• Defensive walls in fortification
• Walls in buildings that form a fundamental part of the superstructure or separate interior sections, sometimes for fire safety
• Retaining walls, which hold back earth, stone, or water
• Walls that protect from oceans (seawalls or rivers levees)
• Permanent, solid fences 
• Border barriers between countries
• Brick wall
• Stone wall

The Israeli West Bank barrier or wall (for further names see here) is a separation barrier built by the Israeli government in the West Bank or along the 1949 Armistice Line known as the "Green Line". Upon completion, its total length will be about and separate about 9.4% of the West Bank and 23,000 Palestinians from the bulk of that territory.

Nathaniel Wallich FRS (28 January 1786 – 28 April 1854) was a surgeon and botanist of Danish origin who worked in India, initially in the Danish settlement near Calcutta and later for the East India Company. He was involved in the early development of the Calcutta Botanical Garden, describing many new plant species and developing a large herbarium collection which was distributed to collections in Europe. Several of the plants that he collected were named after him.