His earnings are 'directly proportional' to the number of units he sells.
The second game followed 'directly' [='immediately'] after the first.
Their house is 'directly' ahead. = It's 'directly' in front of us.
(..) Lieutenant O'Neil, when I want your opinion, I'll give it to ya. Did you take this matter up with my Command Master Chief? I believe you instructed me to come directly to you, sir, if I felt I was being mistreated in any way. All right, Lieutenant. I want names. I want specific grievances. (..)1997 G.I. Jane