n.
obligation
service
1) to assume, take on a ~
2) to carry out, discharge, do, perform one's ~
3) to shirk one's ~
4) an ethical, moral; legal; painful, unpleasant; pleasant ~
5) a civic; official; patriotic; professional ~ ; supervisory duties
6) ( esp. mil .) active; detached; fatigue; guard; light; overseas; sea; special; temporary ~ (to see active ~)
7) a ~ to (a ~ to one's country)
8) a ~ to + inf. (physicians have a ~ to report such cases)
9) on ~; off ~ (who was on ~ yesterday? when do you get off ~?)
10) ( misc. ) a sense of ~; in line of ~; ~ calls
tariff
tax
11) to impose a ~ on
12) to pay ~ on
13) to lift a ~ from
14) to exempt smt. from ~
15) ( BE ) a death ~ ( AE has inheritance tax )