GY, Gy, or gy may refer to:

Units of measurement

Gray (unit) The gray (symbol: Gy) is the unit of ionizing radiation dose in the International System of Units (SI), defined as the absorption of one joule of radiation energy per kilogram of matter. It is used as a unit of the radiation quantity absorbed d ...

(Gy), SI unit of absorbed radiation *

Giga-year A year is a unit of time based on how long it takes the Earth to orbit the Sun. In scientific use, the tropical year (approximately 365 solar days, 5 hours, 48 minutes, 45 seconds) and the sidereal year (about 20 minutes longer) are more exa ...

, 1,000,000,000 years (non-SI) *

Galactic year The galactic year, also known as a cosmic year, is the duration of time required for the Sun to orbit once around the center of the Milky Way Galaxy.

, the time it takes for the Solar System to orbit the Galactic Center

Businesses and organisations

Gabon Airlines Gabon Airlines is the name of two incarnations of Gabonese airline, headquartered in Libreville. The first incarnation of Gabon Airlines which was operated from 2007 to 2012, concentrating on African and European flight services out of Libreville ...

(IATA:GY) *

GenCorp Aerojet Rocketdyne is a subsidiary of American Arms industry, defense company L3Harris that manufactures rocket, Hypersonic flight, hypersonic, and electric propulsive systems for space, defense, civil and commercial applications. Aerojet traces ...

(NYSE:GY) *

Green Youth (disambiguation) Green Youth may refer to one of the following youth wings of Green political parties: *Green Youth (Germany) *Young Greens of Sweden See also * Young Greens (disambiguation) Young Green(s) usually refers to a youth wing of a Green political party o ...

, a Green party youth wing

Language

Hungarian gy This is a list of digraphs used in various Latin alphabets. In the list, letters with diacritics are arranged in alphabetical order according to their base, e.g. is alphabetised with , not at the end of the alphabet, as it would be in Danish, ...

, an alphabetic digraph * gy, a digraph in the Tibetan pinyin transliteration system

People

Pierre Gy Pierre Maurice Gy (; 25 July 1924 – 5 November 2015) was a chemist and statistician. Born in Paris, France, to Felix and Clemence, Gy graduated in chemical engineering from ESPCI ParisTech in 1946. On graduation, Gy worked as a chemical engin ...

(1924–2015), French chemist and statistician * Garin de Gy, 14th century Catholic

Master of the Order of Preachers The Master of the Order of Preachers is the Superior General of the Order of Preachers, commonly known as the Dominican Order, Dominicans. The Master of the Order of Preachers is ''ex officio'' Chancellor (education), Grand Chancellor of the Pont ...

Places

United Kingdom

GY postcode area The GY postcode area, also known as Guernsey postcode area,Royal Mail, ''Address Management Guide'', (2004) its post town, is a group of 10 consecutive postal districts covering Guernsey, Alderney, Sark, Herm and the two inhabited lesser islets ...

, of the Bailiwick of Guernsey *

Great Yarmouth Great Yarmouth ( ), often called Yarmouth, is a seaside resort, seaside town which gives its name to the wider Borough of Great Yarmouth in Norfolk, England; it straddles the River Yare and is located east of Norwich. Its fishing industry, m ...

Grimsby Grimsby or Great Grimsby is a port town in Lincolnshire, England with a population of 86,138 (as of 2021). It is located near the mouth on the south bank of the Humber that flows to the North Sea. Grimsby adjoins the town of Cleethorpes dir ...

Elsewhere

Guyana Guyana, officially the Co-operative Republic of Guyana, is a country on the northern coast of South America, part of the historic British West Indies. entry "Guyana" Georgetown, Guyana, Georgetown is the capital of Guyana and is also the co ...

(ISO 3166: GY) *

Gy, Haute-Saône Gy () is a commune in the Haute-Saône department in the region of Bourgogne-Franche-Comté in eastern France. History In 1389, a dispute arose over the rights to mint coins between the Duke of Burgundy, and the Archbishop of Besançon Guilla ...

, France *

Gy, Switzerland Gy is a municipality in the Canton of Geneva, Switzerland. History Gy is first mentioned in 1227 as ''Gyez''. In 1289 it was mentioned as ''Giez''. In 1851 the municipality separated from Jussy to form an independent municipality.

Science and technology

* .gy, the country code top level domain (ccTLD) for Guyana * Mazda GY, a car engine *

Grapevine yellows Grapevine yellows (GY) are diseases associated to phytoplasmas that occur in many grape growing areas worldwide and are of still increasing significance. The most important grapevine yellows is flavescence dorée. Phytoplasmas are obligate cel ...

, a plant disease * Gy, the on-line charging interface in the

GPRS core network The GPRS core network is the central part of the general packet radio service (GPRS) which allows 2G, 3G and WCDMA mobile networks to transmit Internet Protocol (IP) packets to external networks such as the Internet. The GPRS system is an integ ...

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