in the line of duty

: a length of cord or cord-like material: such as

: a comparatively strong slender cord

: clothesline

: to mark or cover with a line or lines

: to depict with lines : draw

: to place or form a line along

: to cover the inner surface of

: to put something in the inside of : fill

: to serve as the lining of

: conduct due to parents and superiors : respect

: obligatory tasks, conduct, service, or functions that arise from one's position (as in life or in a group)

: assigned service or business

: done as a duty

: being on duty : assigned to specified tasks or functions