line of duty

noun phrase

Definition of line of duty

: all that is authorized, required, or normally associated with some field of responsibility

First Known Use of line of duty

circa 1918

in the meaning defined above

See Words from the same year
NEW! Time Traveler

Seen and Heard

What made you want to look up line of duty? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!