highly educated; having extensive information or understanding; "an enlightened public"; "knowing instructors"; "a knowledgeable critic"; "a knowledgeable audience"
an officer holding a commissioned rank in the United States Navy or the United States Coast Guard; below lieutenant commander and above lieutenant junior grade
situated in a particular spot or position; "valuable centrally located urban land"; "strategically placed artillery"; "a house set on a hilltop"; "nicely situated on a quiet riverbank"