Sentence:  It was the <WSD>opinion</WSD> of some of us that these must be part of the Committeemen who had been in the Battle of the North Bridge , which entitled them to a sort of veteran status , and we felt that if they employed this tactic , it was likely enough the best one . 
Meaning of the word marked with <WSD> tags:  a personal belief or judgment that is not founded on proof or certainty