duty
Cross references: 1. function 2. obligation 3. task du.ty \'d(y)u:t-e-\ n [ME duete, fr. AF duete`, fr. OF deu due] 1: conduct due to parents and superiors : RESPECT 2a: the action required by one's position or occupation 2b: assigned service or business; specif : active military service 3a: a moral or legal obligation 3b: the force of moral obligation 4: TAX; esp : a tax on imports 5a1: the work done by a machine under given conditions 5a2: a measure of efficiency expressed in terms of the amount of work done in relation to the energy consumed 5b1: the service required (as of an electrical machine) under specified con ditions of load and rest 5b2: USE, SERVICE 6: the quantity of irrigation water required to fill the needs of the area of a particular crop
Webster's English Dictionary