ˈdjuːti duːti ɑb.ləˈɡeɪ.ʃən ɹɪˌspɑnsəˈbɪlɪɾi ˈtɛɹɪf ˈtæɹəf work that you are obliged to perform for moral or legal reasons the duties of the job the social force that binds you to the courses of action demanded by that force we must instill a sense of duty in our children every right implies a responsibility; every opportunity, an obligation; every possession, a duty a government tax on imports or exports they signed a treaty to lower duties on trade between their countries