remove irrational quantities from; "This function can be rationalized"
think rationally; employ logic or reason; "When one wonders why one is doing certain things, one should rationalize"
structure and run according to rational or scientific principles in order to achieve desired results; "We rationalized the factory's production and raised profits"
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"- John D.Rockefeller Jr
a government tax on imports or exports; "they signed a treaty to lower duties on trade between their countries"