Tax on imports and exports (4)
I believe the answer is:
duty
(Other definitions for duty that I've seen before include "Is one bound" , "Task; military service" , "Financial or work obligation" , "charge" , "Obligatory task(s) - tax" .)
I believe the answer is:
duty
(Other definitions for duty that I've seen before include "Is one bound" , "Task; military service" , "Financial or work obligation" , "charge" , "Obligatory task(s) - tax" .)