Immediately after a certain event or time; directly following; just after.
事故の直後に救急車が到着した。
An ambulance arrived immediately after the accident.
会議の直後、報告書をメールで送ります。
I'll send the report by email right after the meeting.
試験直後は結果を気にして落ち着かない。
Right after an exam, you can't relax worrying about the results.