Tab (cuneiform)

The cuneiform sign tap, or tab (also ṭab and TAB), is a common use sign in the Amarna letters and the Epic of Gilgamesh. It is used syllabically for tab, tap, ṭap, or TAB, (TAB as parts of personal names, places, or common words, etc.), and alphabetically for "t" (or "ṭ"), or "a". (All the 4 vowels, a, e, i, o are interchangeable.)

Cuneiform tab, tap, and ṭab; also TAB, sign. (Assyrian)

EA 26, fragment (Obverse).
(high-resolution expandable photo)

Epic of Gilgamesh use

For the Epic of Gilgamesh, the following usage is found in Tablets I-XII: tab-(12 times); tap-(25); ṭap-(2); and TAB, (6 times).^[1]