noun: (historical, archaic, sometimes capitalized) The imperial Chinese board of revenue, especially its branch in Guangzhou during the Qing Dynasty.
noun: (historical, archaic) An imperial Chinese customs officer, especially (sometimes capitalized) the chief customs officer for the South China Sea based in Guangzhou during the Qing Dynasty.
noun: (historical, archaic) Alternative letter-case form of hoppo, especially in reference to the imperial board or the chief customs officer of a port. [(historical, archaic, sometimes capitalized) The imperial Chinese board of revenue, especially its branch in Guangzhou during the Qing Dynasty.]