Center

Center or centre (see American and British English spelling differences) may refer to:

Science

• Center (algebra), uses of "center" in algebra
• Center of gravity (military)
• Center (group theory), in abstract algebra, the subgroup consisting of those elements which commute with all other elements
• Center of mass
• Center of symmetry, in geometry, a point that is well-distant from the boundary of a figure
• Geometric center
• Centre (geometry), the middle of an object
• Graph center, the vertices in a graph that minimize the maximal distance from all other vertices

Sports

• Center (American football), a position in American and Canadian football
• Centre Back, a position in Association football
• Center (basketball), a position in basketball
• Centre forward (also known as Striker), a position in Association football
• Centre (ice hockey), a position in ice hockey
• Centre (rugby league), a position in rugby league
• Centre (rugby union), a position in rugby union
• Center fielder, often called "center", a position in baseball

Places

Note that spelling differences for toponyms are not acceptable in both American and British usages, unless the place name is translated from a language not written with the Latin alphabet, or there is an unambiguous local usage pronounced very differently between American English and British English.

Place names that must be spelled only as Center

• Center, Celje, Slovenia, a neighbourhood
• Center, Maribor, Slovenia, a district
• Center, Colorado, United States, a city
• Center, Indiana, United States, a town
• Center, Jay County, Indiana, United States
• Center, Kentucky, United States, a town
• Center, Missouri, United States, a city
• Center, Nebraska, United States, a city
• Center, North Dakota, United States, a city
• Center, Outagamie County, Wisconsin, United States, a city
• Center, Rock County, Wisconsin, United States, a city
• Center, Texas, United States, a city
• Center Township (disambiguation)
• Center, Washington

Place names that must be spelled only as Centre

• Centre, Alabama, United States, a city
• Centre (region), an administrative region in France
• Centre Province, Cameroon
• Centre Region, Burkina Faso

Arts

• Tonic (music), in tonal music, the central or most important pitch
• Center (music band), a famous Russian-speaking band

Education

• Centre College, a liberal arts college in Danville, Kentucky, United States

Other

• Area Control Center, an Air Traffic Control facility covering a large region of airspace not associated with a particular airport
• Central
• Centre Party
• The Center, a paranormal organization in the Martin Mystery series
• Centers (Fourth Way), a human biological, psychological and spiritual nexus of energy process, equivalent to the concept of a Chakra
• Lathe center, used in machining operations
• Political center, the middle ground between the left wing and the right wing