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  • gi
    gi
    noun
    a lightweight, two-piece, usually white garment worn by barefooted martial-arts participants, consisting of loose-fitting pants and a wraparound jacket with cloth belt.
  • Gi
    Gi
    gilbert; gilberts.
  • GI
    GI
    noun
    a member or former member of the U.S. armed forces, especially an enlisted soldier.
  • gi.
    gi.
    abbreviation
    gill; gills.
  • G.I.
    G.I.
    abbreviation
    galvanized iron.
Synonyms

gi

1 American  
[gee] / gi /
Or gie

noun

  1. a lightweight, two-piece, usually white garment worn by barefooted martial-arts participants, consisting of loose-fitting pants and a wraparound jacket with cloth belt.


Gi 2 American  
  1. gilbert; gilberts.


GI 3 American  
[jee-ahy] / ˈdʒiˈaɪ /
Or G.I.

noun

GI's, plural GIs plural
  1. a member or former member of the U.S. armed forces, especially an enlisted soldier.


adjective

  1. rigidly adhering to military regulations and practices; regimented; spit-and-polish.

    a platoon leader who tried to be more GI than anyone else.

  2. of a standardized style or type issued by the U.S. armed forces.

    GI shoes; GI blankets.

  3. conforming to the regulations or practices of the U.S. armed forces.

    Every recruit must get a GI haircut.

  4. of, relating to, or characteristic of a U.S. enlisted person.

    a typical peacetime GI complaint.

verb (used with object)

GI'd, GI'ing
  1. to clean in preparation for inspection.

    to GI the barracks.

verb (used without object)

GI'd, GI'ing
  1. to follow military regulations and customs closely; shape up.

    You'd better learn to GI if you want to be promoted.

gi. 4 American  

abbreviation

  1. gill; gills.


G.I. 5 American  
Also g.i.

abbreviation

  1. galvanized iron.

  2. gastrointestinal.

  3. general issue.

  4. government issue.


GI 1 British  

noun

  1. a soldier in the US Army, esp an enlisted man

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. conforming to US Army regulations; of standard government issue

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
GI 2 British  

abbreviation

  1. gastrointestinal

  2. glycaemic index

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Gi 3 British  

abbreviation

  1. gilbert

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

gi 4 British  
/ ɡiː /

noun

  1. a loose-fitting white suit worn in judo, karate, and other martial arts

    a karate gi

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

gi 5 British  

abbreviation

  1. Gibraltar

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of gi1

1970–75; shortening of Japanese jūdō-gi jujitsu garb, equivalent to jūdō judo + -gi, combining form of ki to wear

Origin of GI3

1915–20; originally abbreviation of galvanized iron, used in U.S. Army bookkeeping in entering articles (e.g., trash cans) made of it; later extended to all articles issued (as an assumed abbreviation of government issue ) and finally to soldiers themselves

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Then the boys — dressed in gi, posed in defiant stances — leap out of the frame.

From New York Times Feb. 3, 2023

Photos from the event show Hardy donning a blue gi, wearing a blue belt, the second adult rank in jiu-jitsu, which often requires hundreds of hours of training to achieve.

From Los Angeles Times Sep. 20, 2022

Many followed his mother's request to attend the ceremony wearing a gi, the uniform worn in Jiu-Jitsu.

From BBC Aug. 9, 2022

Karate, another first on the Olympics calendar, felt ground-breaking for a similar reason, with men and women wearing the sport’s classic gi.

From Washington Post Aug. 6, 2021

“Ugwuanyi,” she said, “you have to come home. Oga gi kwanu? Where is your master?”

From "Half of a Yellow Sun" by Chimamanda Ngozi Adichie

Instead of walking the dog, I watch a short Gi video.

From Slate May 10, 2026

As well as community service, the rapper has been ordered to stay away from the victims, identified as Jade and Baddie Gi, for three years.

From BBC Sep. 16, 2022

Two-way athlete Petelo Gi is a key player for Serra.

From Los Angeles Times Dec. 9, 2021

Friends and family took to the Internet shorty after Kobe and Gi Gi passed to celebrate how much he loved his daughters, and fans soon followed with their own.

From Salon Jun. 20, 2021

Djishtangading: K, M, Go, Gi     13 9   11.

From The Aboriginal Population of the North Coast of California by Cook, Sherburne Friend

That helps isolate the specific impacts of the GI Bill, the landmark 1944 law that effectively provided free college to millions of returning U.S. servicemen.

From MarketWatch Jun. 18, 2026

In an under-reported story, the GI Rights hotline, which helps service members understand their rights to discharge and responds to other concerns, has seen a large increase in calls.

From Salon May 3, 2026

Ask whether your patient has any history of functional GI symptoms.

From Slate Mar. 22, 2026

The researchers believe these two functions help shield the GI tract from infection.

From Science Daily Mar. 16, 2026

My other best buddy—who coincidentally had the same first name, but let’s call him Tommy—lived on the other side of the woods in a pleasant working-class neighborhood made possible by the GI Bill.

From "Class Matters" by The New York Times

“But I remember not even lasting long enough to get a gi. And I don’t think John and Hayden even made it that far.”

From Los Angeles Times Sep. 10, 2022

“Your life belongs to you and you alone, soso gi. You will go back on Saturday. Let me hurry up and make some abacha for you to take.”

From "Half of a Yellow Sun" by Chimamanda Ngozi Adichie

Cigarroa, 28, could have tapped his G.I. benefits, which cover up to $30,000 in tuition and fees for veterans, but he wants to save those for his 3-year-old daughter to use someday.

From The Wall Street Journal Apr. 22, 2026

He later enrolled in what’s now Cal State L.A. under the G.I.

From Los Angeles Times Mar. 24, 2026

Hegseth’s rhetoric is so alarming that it sometimes eclipses how he also can come across like an eight-year-old boy inventing dialogue for the villain in his G.I.

From Salon Mar. 13, 2026

It's been stopped in its tracks by a type of vortex first described in the 1920s by a brilliant physicist, Sir G.I.

From BBC Aug. 3, 2024

With sudden inspiration, Gerald shouted, “Hey Joe, we got a torch!” as he and G.I.

From "Forged by Fire" by Sharon M. Draper

“It was lugged home in some GI’s duffel bag, without its case.”

From Slate Mar. 16, 2024

Anyway, after the bomb was dropped, the GI's who worked at the laboratory came up and shook my hand and said, “You were the person who stuck the hand of the great Enrico Fermi.”

From Scientific American Jul. 27, 2023

The aircraft chase the GI’s informal prayer as reliably as the violins tail the piano in Chanda Dancy’s treacly score.

From Washington Post Nov. 21, 2022

A GI’s fiancee resents his marriage of convenience to a buddy’s English girlfriend.

From Los Angeles Times Jan. 3, 2020

Once in a while the GI's would get binoculars on them but they couldn't see any more details.

From The Report on Unidentified Flying Objects by Ruppelt, Edward J.

In Robert Capa’s photograph of GIs on the USS Samuel Chase just before the D-Day landings, soldiers play craps with French banknotes.

From The Wall Street Journal Jul. 15, 2026

In theory, the law was “colorblind,” offering the same educational support to Black GIs as to white GIs.

From MarketWatch Jun. 18, 2026

"The soldiers who once called each other Redcoats and Yankees became the Tommies and the GIs who together saved the free world," he said.

From Barron's Apr. 28, 2026

D’Aquino’s defense: She had been slyly subverting the propaganda machine the whole time, entertaining Americans with facetious language no one could take seriously and introducing upbeat American music the GIs actually loved.

From Los Angeles Times Nov. 21, 2025

The GIs were spread on other planes and me and Peewee talked a lieutenant into putting us both on a flight to Fort Ord, in California.

From "Fallen Angels" by Walter Dean Myers

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