Flat or flats may refer to:

Architecture

Flat (housing) Flat or flats may refer to: Architecture * Flat (housing), an apartment in the United Kingdom, Ireland, Australia and other Commonwealth countries Arts and entertainment * Flat (music), a symbol () which denotes a lower pitch * Flat (soldier), ...

, an apartment in the United Kingdom, Ireland, Australia and other Commonwealth countries

Arts and entertainment

Flat (music) In music, flat (Italian bemolle for "soft B") means "lower in pitch". Flat is the opposite of sharp, which is a raising of pitch. In musical notation, flat means "lower in pitch by one semitone (half step)", notated using the symbol which is deri ...

, a symbol () which denotes a lower pitch * Flat (soldier), a two-dimensional toy soldier made of tin or plastic *

Flat (theatre) A flat (short for scenery flat) or coulisse is a flat piece of theatrical scenery which is painted and positioned on stage so as to give the appearance of buildings or other background. Flats can be soft covered (covered with cloth such as mus ...

, a flat piece of theatrical scenery * Flat, a leading type of wordplay, as identified by the

National Puzzlers' League The National Puzzlers' League (NPL) is a nonprofit organization focused on puzzle, puzzling, primarily in the realm of word play and word games. Founded in 1883, it is the oldest puzzlers' organization in the world. It originally hosted semiannual c ...

* ''

Flat! ''A Flat'' is a Hindi thriller film, directed by Hemant Madhukar and produced by Anjum Rizvi.The film was released on 12 November 2010 under the Anjum Rizvi Film Company and Y.T Entertainment Ltd. banners. Plot The story follows Rahul (Jimmy She ...

'' (2010), an Indian film *

Flats (band) Flats are a four-piece punk/sludge metal band from East London (with roots in both Palestine and South Wales also). They have their own imprint, Sweat Shop Records, with their last record released in conjunction with Derrick Birkett's One Littl ...

, an English band * Flats (comics), the first stage in the comic coloring process

Footwear

* Flats, footwear which is not high-heeled *

Ballet flat Ballet flats are women's shoes for everyday wear which are similar to/inspired by a women's ballet shoes, with a very thin heel or the appearance of no heel at all. The style sometimes features a ribbon-like binding around the low tops of the slip ...

s, derived from ballet shoes, for casual wear as well as dancing *

Ballet shoe A ballet shoe, or ballet slipper, is a lightweight shoe designed specifically for ballet dancing. It may be made from soft leather, canvas, or satin, and has flexible, thin full or split soles. Traditionally, women wear pink shoes and men wear wh ...

s (also known as ballet slippers), often referred to as "flats" or "flat shoes" *

Racing flat Racing flats, or simply flats, are lightweight athletic shoes designed for "long distance" track and field, cross country, and most often, road races. They differ from normal training shoes mainly by the lack of a substantial heel to toe drop. Fl ...

s, lightweight shoes used primarily for running a race

Geography

Landforms

Flat (landform) A flat is a relatively level surface of land within a region of greater relief, such as hills or mountains, usually used in the plural. The term is often used to name places with such features, for example, Yucca Flat or Henninger Flats. ''Flat' ...

, a relatively level area within a region of greater relief

Bodies of water

* Flat, a shallow water area in the context of

boating Boating is the leisurely activity of travelling by boat, or the recreational use of a boat whether Motorboat, powerboats, Sailing, sailboats, or man-powered vessels (such as rowing and paddle boats), focused on the travel itself, as well as sp ...

fishing Fishing is the activity of trying to catch fish. Fish are often caught as wildlife from the natural environment, but may also be caught from stocked bodies of water such as ponds, canals, park wetlands and reservoirs. Fishing techniques inclu ...

marine biology Marine biology is the scientific study of the biology of marine life, organisms in the sea. Given that in biology many phyla, families and genera have some species that live in the sea and others that live on land, marine biology classifies s ...

, often used in plural form **

Brewster Flats Brewster may refer to: People *Brewster (surname) * Brewster Kahle (born 1960), American computer technologist * Brewster H. Shaw (born 1945), American astronaut Places *Brewster Park (Enniskillen), Northern Ireland * Brewster (crater), The Moon ...

, an area of Cape Cod Bay off the shore of Massachusetts, U.S. **

Kentish Flats Offshore Wind Farm The Kentish Flats Offshore Wind Farm is a wind farm located off the coast of Kent, England on a large, flat and shallow plateau just outside the main Thames shipping lanes. The wind farm is operated by Vattenfall. Location The distance from the ...

, off the coast of Kent, England **

Rhyl Flats Rhyl Flats Offshore Wind Farm is a 25 turbine wind farm approximately 8 km north east of Llandudno in North Wales. It is Wales' second offshore wind farm and the third offshore wind farm to be built within Liverpool Bay. It has a maximum ra ...

, a wind farm off the coast of North Wales *

Flat coast At a flat coast or flat shoreline, the land descends gradually into the sea. Flat coasts can be formed either as a result of the sea advancing into gently-sloping terrain or through the abrasion of loose rock. They may be basically divided into t ...

, a shoreline where the land descends gradually into the sea

Places

United States

Flat, Alaska Flat is a census-designated place (CDP) in Yukon-Koyukuk Census Area, Alaska, United States. As of the 2010 Census, the population of the CDP was 0, down from 4 residents in 2000. Its post office closed in January 2004. History Prospectors J ...

, a census-designated place *

Flat, Kentucky Flat is an unincorporated community in Wolfe County, Kentucky Kentucky ( , ), officially the Commonwealth of Kentucky, is a state in the Southeastern region of the United States and one of the states of the Upper South. It borders Ill ...

, an unincorporated community *

Flat, Missouri Flat is an unincorporated community in southern Phelps County, Missouri, United States. It is located approximately sixteen miles southwest of Rolla. The community is at the intersection of Missouri routes M and T. Edgar Springs lies about four ...

, an unincorporated community *

Flat, Texas Flat is a small unincorporated community in Coryell County, Texas, United States. It is part of the Killeen–Temple–Fort Hood metropolitan statistical area. History The area was originally titled "Mesquite Flat" when the town appli ...

, an unincorporated community *

Flat Brook Flat Brook, also spelled as Flatbrook, is an U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed April 1, 2011 tributary of the Delaware River in Sussex County, New Jersey in the United Sta ...

, a tributary of the Delaware River in Sussex County, New Jersey *

Flats, Nebraska Flats is an extinct town in McPherson County, Nebraska, United States. The GNIS The Geographic Names Information System (GNIS) is a database of name and locative information about more than two million physical and cultural features througho ...

, United States *

Flats, West Virginia Flats is an unincorporated community in Hardy County, West Virginia West Virginia is a state in the Appalachian, Mid-Atlantic and Southeastern regions of the United States.The Census Bureau and the Association of American Geographers cla ...

, an unincorporated community *

Forest Lake Area Trail System The ultimate goal of the Forest Lake Area Trail System (FLATS) is to develop a trail system connecting Kirksville and Thousand Hills State Park. The first phase of the trail is a ten-foot wide concrete trail between the Petroglyph Site and Marina i ...

, Missouri

Other

Flat, Puy-de-Dôme Flat is a former commune in the Puy-de-Dôme department in Auvergne in central France. On 1 January 2016, it was merged into the new commune of Aulhat-Flat.Flat Island (disambiguation) Flat Island may refer to: * Flat Island (Hong Kong) * Flat Island (Spratly) in the South China Sea * Flat Island (Falkland Islands) in the south Atlantic Ocean * Flat Island Wildlife Sanctuary, in the Andaman Islands * Flat Island, a former separa ...

, in various places *

Flat Islands (disambiguation) Flat Islands may refer to: * Flat Islands (Antarctica) * Flat Islands, Bonavista Bay, Newfoundland and Labrador * Flat Islands, Placentia Bay, Newfoundland and Labrador See also * Flat Island (disambiguation) * Flat Isles The Northumberlan ...

, in Canada and Antarctica *

Flat River (disambiguation) Flat River may refer to: Rivers * Flat River (Northwest Territories), a tributary of the South Nahanni River * Flat River (Louisiana) * Flat River (Missouri), a tributary of the Big River * Flat River (Michigan) * Flat River (North Carolina) ...

, in the United States and Canada

Mathematics and geometry

Flatness (mathematics) In mathematics, the flatness (symbol: ⏥) of a surface is the degree to which it approximates a mathematical plane. The term is often generalized for higher-dimensional manifolds to describe the degree to which they approximate the Euclidean spac ...

, of a surface *

Flat (geometry) In geometry, a flat or Euclidean subspace is a subset of a Euclidean space that is itself a Euclidean space (of lower dimension). The flats in two-dimensional space are points and lines, and the flats in three-dimensional space are points, lin ...

, the generalization of lines and planes in an ''n''-dimensional Euclidean space *

Flat (matroids) In combinatorics, a branch of mathematics, a matroid is a structure that abstracts and generalizes the notion of linear independence in vector spaces. There are many equivalent ways to define a matroid axiomatically, the most significant being ...

, a further generalization of flats from linear algebra to the context of matroids *

Flat module In algebra, a flat module over a ring ''R'' is an ''R''-module ''M'' such that taking the tensor product over ''R'' with ''M'' preserves exact sequences. A module is faithfully flat if taking the tensor product with a sequence produces an exact seq ...

in ring theory *

Flat morphism In mathematics, in particular in the theory of schemes in algebraic geometry, a flat morphism ''f'' from a scheme ''X'' to a scheme ''Y'' is a morphism such that the induced map on every stalk is a flat map of rings, i.e., :f_P\colon \mathcal_ \t ...

in algebraic geometry * Flat sign, for its use in mathematics; see

musical isomorphism In mathematics—more specifically, in differential geometry—the musical isomorphism (or canonical isomorphism) is an isomorphism between the tangent bundle \mathrmM and the cotangent bundle \mathrm^* M of a pseudo-Riemannian manifold induced by ...

, mapping vectors to covectors

People

Nickname

* Earl "Flat" Chase (1910–1954), Canadian baseball player *

Flat Walsh James Patrick "Flat" Walsh (March 23, 1897 — December 2, 1959) was a Canadian professional ice hockey goaltender. He played in the National Hockey League (NHL) for the Montreal Maroons and New York Americans between 1927 and 1933. Much of his ca ...

(1897–1959), Canadian ice hockey goaltender

Fictional characters

Flat Eric Flat Eric is a puppet character, created by Quentin Dupieux (better known under his stage name Mr. Oizo), from Levi's commercials for Sta-Prest One Crease Denim Clothing, built by Jim Henson's Creature Shop. His name comes from an idea for a ...

, a character in some Levi's commercials * ''

Flat Stanley ''Flat Stanley'' is an American children's book series written by author Jeff Brown (January 1, 1926 – December 3, 2003). The idea for the book began as a bedtime story for Brown’s sons, which Brown turned into the first Flat Stanley book. Th ...

'', namesake of an American children's book series

Groups

* FLATS or

First Lady Astronaut Trainees The Mercury 13 were thirteen American women who took part in a privately funded program run by William Randolph Lovelace II aiming to test and screen women for spaceflight. The participants—First Lady Astronaut Trainees (or FLATs) as Jerrie ...

, American women who underwent NASA Project Mercury physiological screening tests

Other uses

Flat (gridiron football) The flat in gridiron football is the area of the field extending ten yards into the defensive backfield from the line of scrimmage and extending outside the hash marks to the out-of-bounds lines (a distance of about 15 yards). Offenses will typ ...

, the area of the gridiron football field * Flat butterflies or flats, certain skipper butterfly genera in subfamily Pyrginae: ** ''

Calleagris ''Calleagris'' is a genus of skippers in the family Hesperiidae. Species *'' Calleagris hollandi'' (Butler, 1897) *'' Calleagris jamesoni'' (Sharpe, 1890) *'' Calleagris kobela'' (Trimen, 1864) *'' Calleagris krooni'' Vári, 1974 *'' Calleagr ...

'' (scarce flats), ** ''

Celaenorrhinus ''Celaenorrhinus'' is a genus of skipper butterflies which are commonly termed sprites. An alternate name is flats, for their habit of holding their wings flat when resting, but this is also used for related genera. They belong to the spread-w ...

'' of tribe Celaenorrhini; ** ''

Eagris ''Eagris'' is a genus of skippers in the family Hesperiidae. Species *'' Eagris decastigma'' Mabille, 1891 *'' Eagris denuba'' (Plötz, 1879) *'' Eagris hereus'' (Druce, 1875) *'' Eagris lucetia'' (Hewitson, 1875) *'' Eagris nottoana'' (Walle ...

'', and ** ''

Tagiades ''Tagiades'', commonly known as snow flats, is a genus of spread-winged skipper butterflies. It is the type genus of the tribe Tagiadini of the subfamily Pyrginae in the family Hesperiidae. It contains seventeen species; three of which are fou ...

'' (water flats, snow flats), of tribe Tagiadini * Flats (USPS), an oversized letter *

Optical flat An optical flat is an optical-grade piece of glass lapped and polished to be extremely flat on one or both sides, usually within a few tens of nanometres (billionths of a metre). They are used with a monochromatic light to determine the flatn ...

, an extremely flat piece of glass