• synonyms


or gie

See more synonyms on Thesaurus.com
  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.

Origin of gi

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


or G.I.

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

Origin of GI

1915–20; orig. 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


or G.I.'s, G.I.s.

  1. the GI's, Slang. diarrhea.

Origin of GI's

1960–65, Americanism; probably for GI shits; see GI, -s3
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for gis

Contemporary Examples

Historical Examples

British Dictionary definitions for gis


abbreviation for
  1. geographic(al) information system: a system for storing, editing, and displaying geographical information on computer
  2. (in Canada) guaranteed income supplement


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

Word Origin

from Japanese -gi costume, from ki to wear


the internet domain name for
  1. Gibraltar


abbreviation for
  1. gilbert


noun US informal
  1. plural GIs or GI's a soldier in the US Army, esp an enlisted man
  1. conforming to US Army regulations; of standard government issue

Word Origin

C20: abbrev. of government issue



abbreviation for
  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

gis in Medicine


  1. gastrointestinal
  2. Gingival Index
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

gis in Science


  1. Abbreviation of Geographic Information System
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.