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


Origin of GI's

1960–65, Americanism; probably for GI shits; see GI, -s3


or gie

  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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for gi's

doughboy, serviceperson

British Dictionary definitions for gi's


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

Word Origin for gi

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 for GI

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

gi's 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.