Written forms:LÚ.GAL-ú; NUN; NUN-a; NUN-e; LÚ.NUN.MEŠ; NUN.MEŠ; NUN.MEŠ-e; NUN-u; NUN-ú; ru-ba; ru-ba-a-tu; ru-ba-ú; ru-ba-um; ru-be-e; ru-bé-e; ru-bé-ia; ru-bu-u; ru-bu-ú.
Normalized forms:rubā (NUN-a, ru-ba); rubāʾu (ru-ba-ú); rubāʾū (ru-ba-ú); rubāʾum (ru-ba-um); rubâtu (ru-ba-a-tu); rubê (NUN, NUN-e, NUN.MEŠ, NUN.MEŠ-e, ru-be-e, ru-bé-e, LÚ.NUN.MEŠ); rubêya (ru-bé-ia); rubû (NUN, NUN-u, NUN-ú, ru-bu-u, ru-bu-ú, LÚ.GAL-ú).