上うわ側かわ

noun, noun which may take the genitive case particle 'no'

upper side; top surface

Refers to the upper side or surface of something, often contrasted with 下側 (underside). Can be used as a noun or with の to modify another noun.

• 箱はこの上うわ側がわにラベルを貼はってください。

  Please put the label on the top side of the box.

• 上うわ側がわの引ひき出だしに書しょ類るいが入はいっています。

  The documents are in the upper drawer.