gi

1 of 6

abbreviation (1)

gill

GI

2 of 6

adjective

ˌjē-ˈī 

1

: provided by an official U.S. military supply department

GI shoes

2

: of, relating to, or characteristic of U.S. military personnel

3

: conforming to military regulations or customs

a GI haircut

GI

3 of 6

noun

plural GIs or GI's ˌjē-ˈīz 

: a member or former member of the U.S. armed forces

especially : a man enlisted in the army

GI

4 of 6

adverb

: in a strictly regulation manner

GI

5 of 6

verb

GI'd ˌjē-ˈīd  ; GI'ing ˌjē-ˈī-iŋ 

transitive verb

: to clean (something) thoroughly in preparation for or as if for a military inspection

The barracks … were in fine order—they'd been GI'd the night before.

—New Republic

GI

6 of 6

abbreviation (2)

1

galvanized iron

2

gastrointestinal

3

general issue; government issue

4

glycemic index

Synonyms

Verb

• clean
• cleanse
• deterge
• turn out

Examples of gi in a Sentence

Verb

in preparation for one of her mother-in-law's dreaded visits, she had GI'd the whole house

Recent Examples on the Web

Noun

All parts of this plant contains saponins, which can cause salivation, vomiting and GI upset. —Arricca Elin Sansone, Southern Living, 15 Jan. 2025

This helps to reduce GI side effects from the drug. —Fran Kritz, Verywell Health, 14 Jan. 2025

Government Partnerships — Initiatives like the Post-9/11 GI Bill can cover a significant portion of tuition and fees. —Gerald Bradshaw, Chicago Tribune, 14 Jan. 2025

Fink acknowledged the challenges of antibodies getting to the GI tract and said the company’s actively monitoring that as part of its development process. —Alex Knapp, Forbes, 14 Jan. 2025

Word History

Etymology

Adjective

galvanized iron; from abbreviation used in listing such articles as garbage cans, but taken as abbreviation for government issue

First Known Use

Adjective

1926, in the meaning defined at sense 1

Noun

1943, in the meaning defined above

Adverb

1949, in the meaning defined above

Verb

1951, in the meaning defined above

Kids Definition

GI

1 of 2 adjective

(ˈ)jē-ˈī 

: of, relating to, or characteristic of U.S. military forces

GI

2 of 2 noun

plural GIs or GI's

: a member or former member of the U.S. armed forces

Etymology

Adjective

from the abbreviation for galvanized iron used in listing such articles as garbage cans, but mistaken as standing for government issue

Medical Definition

GI

abbreviation

(ˈ)jē-ˈī 

1

gastrointestinal

2

glycemic index