In Japanese, a person who graduated the university called 社会人.
社会 is society and 人 is person. However society person does not seem natural English.
The word 社会人 was used in (1.2.1.2) How much time can you spend for learning? in Japanese version.
Replacement candidate:
Is it similar to the concept of "adult?"
I used same word in (5.3) Tuning for busy people, but in this case it just means busy people.