noun
company dormitory
A dormitory provided by a company for its employees, often at low rent. Common in Japan, especially for new graduates.
新入社員は社員寮に入ることが多い。
New employees often move into the company dormitory.
社員寮の家賃はとても安い。
The rent for the company dormitory is very cheap.
社宅 is a company-provided house or apartment, often for families, whereas 社員寮 is typically a dormitory-style building for single employees.
Compound of 社員 (shain, 'employee') and 寮 (ryō, 'dormitory').