Ib (cuneiform) letters is usually so compact, that hardly any of the individual strokes can be easily identified. Another sign is similar in this group to cuneiform "ur", but the center is replaced by 2 stokes, one angled down, and the other a wedge (at extreme right vertical), and is the "gáb" sign. In the Amarna letters it is often used for English "all", or "all (of us)", Akkadian language, "gabbu". (Amarna letters EA 153, EA 287, EA 288, and EA 267) Ib (cuneiform) The cuneiform sign ib, (or ip) is a common-use sign in the "Epic of Gilgamesh", the Amarna letters,
Zu (cuneiform) Zu (cuneiform) Cuneiform zu, (also sú, ṣú, and sumerogram ZU (capital letter majuscule)), is an uncommon-use sign in the 1350s BC Amarna letters, the "Epic of Gilgamesh", and other cuneiform texts. Alphabetically, it could conceivably be used for letters "z", "s", "ṣ", or "u"; however in the Amarna letters it is used mostly for "personal names" or "geographical names". In the "Epic of Gilgamesh", sumerogram "ZU", is used to spell the name of god Ninazu, (a name of god Tammuz, two times, Chapter XII, 28, 47). In the "Epic", "ZU" is also used as a logogram, "ZU.AB", for Akkadian language