Is there a word for the room adjacent to an office where the secretary sits?
E.g. "I arrived after 5:00 P.M. and waited in his asdfasdf for a few minuntes before being called to his office"
Solution 1:
This is an antechamber or anteroom:
a small outer room that leads to another room and that is often used as a waiting room
[Merriam-Webster]
Solution 2:
"and sat in the waiting room / area before being called"