The cuneiform gi sign is a common multi-use sign of the Epic of Gilgamesh, the 1350 BC Amarna letters, and other cuneiform texts.
It also has a sumerogrammic usage for GI in the Epic of Gilgamesh.
The structure of the cuneiform sign is like its twin, Zi (cuneiform), .
Alphabetically "gi" can be used for g ("g" can be interchanged with "k", or "q"); and "gi"/"ge" can be used for i, or e. In Akkadian, all 4 vowels, a, e, i, u are interchangeable with each other.
The gi sign usage in the Epic of Gilgamesh is as follows: ge-(4 times); gi-(17), GI-(20 times).