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'GI' ('G.I.'), 'Gi' or 'gi' may refer to:

Contents

Science and measurement

Martial Arts

Sports and leisure

Places

Other

Science and measurement

★ Galvanized iron - iron that has been electrochemically rustproofed with zinc

★ Gastrointestinal - a division of the human anatomy in medicine

★ ''Geodætisk Institut'' - a former Danish cartographic institute

★ Geographical indication

★ Geophysical Institute - a research institution at the University of Alaska Fairbanks

★ GI (complexity) - complexity class of the Graph Isomorphism Problem

★ Gill - a U.S. unit of volume equal to 4 U.S. fluid ounces and an Imperial unit equal to 5 imperial fluid ounces

★ Global illumination - the rendering of light in 3D computer graphics scenes

★ Global income

★ Glycemic index - a ranking system for carbohydrates based on their effect on blood glucose levels

★ Graded index

★ Granuloma inguinale - an alternate name for donovanosis, a bacterial infection

★ Graph isomorphism problem and the complexity class of problems reducible to it

★ Gibi or Gi - the IEEE prefix that represents 2³⁰

★ Gilbert (Gb or Gi) - a former CGS unit of magnetomotive force or magnetic potential

Martial Arts

★ Keiko gi - a traditional training uniform worn throughout Japanese Martial Arts.

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★ Judo gi, the keikogi worn by practitioners of Judo.

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★ Karate gi, the traditional keikogi by practitioners of Karate.

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★ Aikido gi, the keikogi worn by practitioners of Aikido.

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★ Jujutsu gi, the keikogi worn by practitioners of Judogi.

Sports and leisure

★ Group I (also written Grade I or Group 1) -- in horse racing, younger horses generally represented by the lower number. Listings 1-3 usually Roman numerals.

★ (GI) - an album by The Germs

★ ''Game Informer'' - a video game magazine

★ Government Issue - a 1980s hardcore band

★ G.I. Joe - a toy soldier series manufactured by Hasbro

★ G.I. (comics) - a reference to Genetic Infantryman in the ''Rogue Trooper'' fictional universe

★ Gi (Captain Planet character) - a character in the television series ''Captain Planet and the Planeteers''

Places

★ Gary, Indiana - a city in Northwest Indiana

★ Grand Island, Nebraska - an American city

★ .gi - Gibraltar's country code top-level domain

★ Gibraltar

Other

★ Gi - an alternative name for Chaac, a Mayan god

★ Generic identifier - A string constituting the name of a element in an SGML document

★ General Instrument - an electronics company

★ GI (military) or G.I. - a nickname for a United States Army soldier

★ Itek Air - IATA airline designator

★ Goethe-Institut - the German cultural affairs body