The word "after" is an adverb that means following in time, succeeding, or coming next after something. It can also indicate a later period or occasion, especially when used with specific dates or times.
Usage examples
We will meet at the office after lunch.
Clean up the kitchen after you finish cooking.
Send the report to your supervisor after reviewing it.
Lock the doors after everyone has left.
I will call you after I get home from work.
Take a break after completing each section of the exam.
Put away your books after you finish studying.
Go to the gym after work to exercise.
We can start decorating the room after we finish cleaning it.
Keep them all in one place, and remember every special day year after year. (clickamericana.com)
I imagine that is how it is with most people, despite the trauma fatigue that tends to set in, with day after day of terrible news coming in. (eatthelove.com)
Then it just kept staying bright, and not changing, for month after month. (keckobservatory.org)