- GI⇄adj. 1. of United States government issue.
Ex. GI shoes, GI socks.
2. (Informal.) conforming to regulations; standard.
Ex. GI uniforms.
3. of, having to do with, or for a member, or former member, of the United States armed forc - GI⇄GI(no periods)orG.I.
1. gastrointestinal.
2. general issue.
3. government issue. - GI⇄GI, adjective, noun, pl.GI's,verb, GI'd,GI'ing.
- GI⇄noun (Informal.)1. an enlisted soldier in the United States Army; serviceman.
2. a member or former member of any one of the armed services of the United States. - GI⇄v.t., v.i. (U.S. Informal.) to clean, polish, or arrange in preparation for inspection by officers.