noun
special admission quota for working adults
Used in university admissions to refer to a special selection process or reserved slots for non-traditional students, typically those with work experience or older applicants.
彼は社会人枠で大学院に入学した。
He entered graduate school through the special quota for working adults.
この大学には社会人枠の入試制度があります。
This university has an entrance exam system for working adults.
Compound of 社会人 (shakaijin, 'working adult') and 枠 (waku, 'frame' or 'quota'), referring to a reserved category for non-traditional students.