Letters that make tour of duty
o, d, f, r, t, u, y are letters that make 'tour of duty'
o, d, f, r, t, u, y are letters that make 'tour of duty'
1 possible definitions for 'tour of duty'
Under this definition, tour of duty is a noun and has the following properties:
duty tour, term of enlistment, hitch, tour, enlistment have the same meaning as 'tour of duty'
'tour of duty' can be a type of time period, period of time, period.