A stall is a small enclosure of some kind, usually less enclosed than a room.
Market stall 
A market stall is usually an immobile temporary structure erected by merchants to display and shelter their merchandise. Such stalls are easily erected or taken down to allow movement to a new market area.
Some commercial marketplaces, including market squares or flea markets, may erect (or allow merchants to erect) more permanent stalls. Conversely, some stalls incorporate wheels, tow hitches, or other devices to make transportation of the stall easier. Most can be closed and locked when not in use.
A merchant will sometimes use an open-air stall in front of a more permanent store building in order to entice passers-by with eye-catching goods or discounts. Such a stall can be taken indoors and locked up after business hours.
Animal stall 
An animal stall is an enclosure housing one or a few animals. Often this too can be a temporary or permanent enclosure at a market (see above) but stalls for animals can often be found wherever animals are kept: a horse stable is often a purpose-built and permanent structure. A farmer's barn may be subdivided into animal stalls or pens for cows and other livestock.
In horse care, the standard dimensions for a box stall vary from 10' by 12' to 14' by 14', depending on local cultural traditions, the breed of horse, gender, and any special needs. Mares with foals often are kept in double stalls. Stallions, kept alone with less access to turnout, are also often given larger quarters. Ponies sometimes are kept in smaller box stalls, and warmbloods or draft horses may need larger ones. Box stalls usually contain a layer of absorbent bedding such as straw or wood shavings and need to be cleaned daily.
Other uses 
- In a cathedral, the stalls are the seats built into the quire (or choir) in the eastern end of the structure.
- In a theatre or concert hall auditorium, the stalls, also referred to as orchestra seats, are the seats on the ground floor directly in front of the stage.
- In a public washroom, multiple toilets are separated into stalls for privacy.
- In the United Kingdom the bake sale is known as a cake stall.
- a high-backed booth at a restaurant
- A shower stall
- In Association football, teams that reveal their attacking (or defensive) intentions during the opening part of the game are said to "set their stall out".
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