line of duty

1. 1.

   all that is normally required in some area of responsibility

   Broaderduty

Questions about line of duty

What does line of duty mean?

line of duty means "all that is normally required in some area of responsibility".

Is line of duty a common word?

line of duty is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.