tuku [ROCK] (33x: Old Babylonian) wr. tuku₄; tu-ku "to rock, shift" Akk. nâšu

u ku [SLEEP] (47x: Old Babylonian) wr. u₃ ku; u₃ ku₄ "to sleep" Akk. şalālu

udkurnuria [YESTERDAY] (1x: unknown) wr. ud-ku-nu-ri-a "yesterday"

ugubi [MONKEY] (13x: Old Babylonian) wr. ^uguugu₄-bi; ^uguu-gu₅-bi "monkey" Akk. uqūpu

ukuk [BURN] (1x: Old Babylonian) wr. u₂-ku-uk "to burn"

ukuku [BIRD] (4x: Old Babylonian) wr. u₃-ku-ku^mušen "a bird" Akk. şallallu

ukukuba'uš [BIRD] wr. u₃-ku-ku-ba-uš₂^mušen "a bird" Akk. ittīl imūt

ukurum [BRICK] (16x: Ur III) wr. u₃-ku-ru-um "a type of brick" Akk. ukurru

zikum [HOSTEL] (166x: Old Akkadian, Ur III) wr. zi-kum; zi-ku-um "messenger hostel" Akk. sikku