This is a pictograph of a basin.Therefore, it is the noun basin.
Illustrative Text Reference:
Harappa: Seal: H-94 a: Jagat Pati Joshi and Asko Parpola, 1987: Corpus of Indus Seals and Inscriptions: Volume 1: Page 189: Collections in India: Suomalainen Tiedeakatemia.
Comment:
In inscription H-94, this symbol represents a water bowl. In other contexts, it is dye vat, and a beer steeper.
Image Credit:
Basin: Lynn Fawcett, 2018.