Windows

thumb|300px|A glass building facade|alt=Refer to caption

A window is an opening in a wall, door, roof, or vehicle that allows the exchange of light and may also allow the passage of sound and sometimes air. Modern windows are usually glazed, or covered in some other transparent or translucent material, a sash set in a frame in the opening. The sash and frame are also referred to as a window. Many glazed windows may be opened, to allow ventilation, or closed to exclude inclement weather. Windows may have a latch or similar mechanism to lock the window shut or to hold it open by various amounts.

thumb|upright=1.35|Typical curtains for a window thumb|upright=1.35|Theatre curtains on a small stage (Canberra Albert Hall, 2016) A curtain is a piece of cloth or other material intended to block or obscure light, air drafts, or (in the case of a shower curtain) water.

colored glass used as an art material

circular window

type of window covering

thumb|upright=1.2|Dormer window of the Building of Préfecture de police de Paris (île de la Cité) thumb|upright=1.2|Gable dormers at Hospices de Beaune in Beaune, France thumb|upright=1.2|Pair of hip roof dormer windows on the Howard Memorial Hall, [[Letchworth]]

thumb|Embrasure with three angles of fire, Keoti Fort, India thumb|upright|A loophole or inverted keyhole embrasure, allowing both arrow fire (through the arrowslit at the top) and small cannon fire through the circular openings, [[Fort-la-Latte, France]] thumb|Embrasure of Chinese wall thumb|Embrasures at Fortifications of Mdina|Mdina, [[Malta]] thumb|upright|Embrasure at Atalaya Castle (Spain)|Atalaya Castle, Spain

bay window which protrudes from the main wall of a building but does not reach to the ground

thumb|right|upright=1.35|Matthäus Merian's impression of the 1618 Defenestration of Prague

window in a shop displaying items for sale

window screen formed by either a solid panel or a louvered scheme

circular opening in the center of a dome or in a wall

criminological theory

space defined by the vertical piers, in a building

thumb|upright|Interior elevation of a Gothic cathedral, with clerestory highlighted thumb|The church of St. Nicholas' Church (Stralsund)|St Nicholas, Stralsund in Germany – the clerestory is the level between the two green roofs, reinforced here by [[flying buttresses]]

thumb|right|Jewish refugees look out through a porthole of a ship while docked in the port of Haifa, 1950–1959

thumb|class=skin-invert-image| thumb|Books placed on an interior window sill or stool

architectural element

Tracery is an architectural device by which windows (or screens, panels, and vaults) are divided into sections of various proportions by stone bars or ribs of moulding. Most commonly, it refers to the stonework elements that support the glass in a window. The purpose of the device is practical as well as decorative, because the increasingly large windows of Gothic buildings needed maximum support against the wind. The term probably derives from the tracing floors on which the complex patterns of windows were laid out in late Gothic architecture. Tracery can be found on the exterior of building

construction element consisting of at least two glass plates for windows and other glazing

thumb|upright=1.35|Shoji paper sliding doors in the Rinshunkaku at Sankei-en (Important Cultural Property) thumb|upright=1.35|Shoji doors next to the tokonoma alcove, Rinshunkaku thumb|upright=1.35| alt=View along wood-floored engawa towards a corner showing shoji edge-on and, on the far side of the corner, from the inside, with light shining through.|A tatami room surrounded by paper shoji (paper outside, lattice inside). The shoji are surrounded by an engawa (porch/corridor); the engawa is surrounded by [[garasu-do, all-glass sliding panels.]]

thumb|Skylight in the rotunda of Centro Cultural Banco do Brasil in [[Rio de Janeiro]] thumb|Oculus (architecture)|Oculus of the [[Pantheon, Rome, an open skylight]] thumb|Skylight in the vault in the Chapel of the Constable of the Burgos Cathedral, a glazed closed skylight from the 15th century

type of window

parable by French economist Frédéric Bastiat

property tax based on the number of windows in a house

type of door or window shutter consisting of many horizontal slats hinged together

thumb|300px|A mashrabiya in Tunisia

window space projecting outward from the main walls of a building and forming a bay in a room

thumb|250px|right|Type of louver in concept thumb|250px|right|Louver used in a Stevenson screen thumb|Louver shutters in Italy thumb|250px|right|Louvered cupola bell house

thumb|Traditional fabric shop in Nara, Nara|Nara with in front of the entrance

architectural element that transmits light for the purpose of illumination

REDIRECT Oculus (architecture)#Oeil-de-boeuf

thumb|upright|A mullioned window in the church of San Francesco (Lodi)|San Francesco of [[Lodi, Lombardy]] A mullion is the vertical element that forms a division between units of a window or screen, or is used decoratively. When dividing adjacent window units its primary purpose is a rigid support to the glazing of the window. Its secondary purpose is to provide structural support to the horizontal lintel above the window opening (Horizontal elements separating the head of a door from a window above are called transoms). In the case of multiple arched windows combined building a bifora (or tr

Rayonnant was a very refined style of Gothic Architecture which appeared in France in the 13th century. It was the defining style of the High Gothic period, and is often described as the high point of French Gothic architecture. French architects turned their attention from building cathedrals of greater size and height towards bringing greater light into the cathedral interiors and adding more extensive decoration. The architects made the vertical columns and supports thinner, made extensive use of pinnacles and moldings. They combined the triforium gallery and the clerestory into single spa

A glazier is a tradesperson responsible for cutting, installing, and removing glass (and materials used as substitutes for glass, such as some plastics). They also refer to blueprints to figure out the size, shape, and location of the glass in the building. They may have to consider the type and size of scaffolding they need to stand on to fit and install the glass. Glaziers may work with glass in various surfaces and settings, such as cutting and installing windows, doors, shower doors, skylights, storefronts, display cases, mirrors, facades, interior walls, ceilings, and tabletops.

thumb|upright|Chambranle (Moravec (Žďár nad Sázavou District)|Moravec, [[Czech Republic)]]

thumb|upright|A trifora over Porta della carta, Doge's Palace, Venice Trifora is a type of three-light window. The trifora usually appears in towers and belfries—on the top floors, where it is necessary to lighten the structure with wider openings.

thin laminate film installed on glass surfaces

practice of using daylight in building by windows or other openings

thumb|right|250px|Casa dos Patudos Monofora is a type of the single-light window, usually narrow, crowned by an arch, and decorated by small columns or pilasters.

very narrow pointed window

cover for the opening of a window

spinning window to disperse rain/spray/snow

window including one or more movable panels, or "sashes"

species of mollusc

outward opening window that is incorporated as part of the design of a roof

thumb|Squint in wall of north aisle chapel, St Nicholas's Church, Walcot, Lincolnshire|Walcot, Lincolnshire, looking towards south-east, with a view of the high altar in the chancel beyond. To its right is a [[piscina supported by a carving of a man's head on the jamb of the wall.]] thumb|The squint at the Church of the Blessed Virgin Mary, Compton Pauncefoot, Somerset

thumb|right|250px|Convent/nunnery of the Kalocsa School sisters named after Our Lady, Hungary. Built in 1860. Quadrifora is a type of four-light window. It appears in towers and belfries on top floors, where it is necessary to lighten the structure with wider openings. The quadrifora can also be a group closely set windows.

window rotated 45° from vertical, found primarily on 19th century famhouses in Vermont, US

window composed of parallel glass, acrylic, or wooden louvres set in a frame

right|thumb|Espagnolette locking device An espagnolette is a locking device, normally mounted on the vertical frame of a French door or casement window. A handle or knob is connected to a metal rod mounted to the surface of the frame, about a metre above the floor. Operating the handle rotates the rod, which has hooks at each end that fit into sockets at the head and sill of the opening. This type of lock is often used on semi-trailer trucks with dry van and reefer semi-trailers to fasten the rear doors as well as in intermodal containers. It can be identified by the use of a round bar, instea

thumb|Lightwell

thumb|Diagonal muntins separating diamond-shaped panes of glass in a casement window. thumb|Muntins divide each window into six panes of glass. Rounded mullions separate the three casement windows. [[Nový Bor, the Czech Republic.]]

type of semicircular window

thumb|Spherical awning of a Bandstand|bandshell An awning or overhang is a secondary covering attached to the exterior wall of a building. It is typically composed of canvas woven of acrylic, cotton or polyester yarn, or vinyl laminated to polyester fabric that is stretched tightly over a light structure of aluminium, iron or steel, possibly wood or transparent material (used to cover solar thermal panels in the summer, but that must allow as much light as possible in the winter). The configuration of this structure is something of a truss, space frame or planar frame. Awnings are also often c

shop selling goods through a small hole in a wall

thumb|A window with a fortochka (in the upper left corner) A fortochka () is a small ventilation window generally not greater than 35x45 cm. It usually spans the frame of one window pane and opens on hinges independently of the whole window. Fortochkas are in common use in Russia, other post-Soviet states (, ), and Finland ().

thumb|Fanlight at Montgomery's Inn in [[Toronto, Ontario]] thumb|Hotel in Ariah Park, [[New South Wales, with its name in the fanlight]]