Sentence:  Gun set the captain 's fifth of Hiram Walker inside the safe before he reported to Lt. Killpath , though he <WSD>knew</WSD> that Killpath 's ulcer prevented him from making any untoward incursion on Herman Wolff 's gift . 
Meaning of the word marked with <WSD> tags:  be cognizant or aware of a fact or a specific piece of information; possess knowledge or information about