Ma'anar ƙamus na kalmar "dockage" tana nufin kuɗin da ake caji don amfani da tashar jiragen ruwa, ruwa, ko tudun ruwa don lodawa, saukewa, ko ajiyar kaya. Hakanan yana iya komawa zuwa sararin da aka keɓe don matsewa ko adanar jirgin ruwa a tashar jiragen ruwa, ko aikin datse jirgin ruwa. A wasu mahallin, yana iya komawa ga tsarin cire tashar jiragen ruwa ko wasu ci gaban ruwa daga cikin jirgin ruwa.