Sentence:  When he was in the war , he was in Law or Supplies or something like that , and an old buddy of his told me he would come down on <WSD>Sundays</WSD> to the Pentagon and read the citations for medals - just like the one we sent in for Trig - and go away with a real glow . 
Meaning of the word marked with <WSD> tags:  first day of the week; observed as a day of rest and worship by most Christians