In this composite Indus sign, the noun doorway is combined with a pictograph of a post and hook. Hence, it is the phrase hanging by the door.
Illustrative Text Reference:
Harappa: Seal: H-419 a: Sayid Ghulam Mustafa Shah and Asko Parpola, 1991: Corpus of Indus Seals and Inscriptions: Volume 2: Page 270: Collections in Pakistan: Suomalainen Tiedeakatemia.
Comments:
There is only one extant example of this Indus sign.
Seal H-419 is broken, so unfortunately only two characters from the inscription have survived.
Image Credit:
Hang by the Doorway: Lynn Fawcett, 2019.