This definition appears somewhat frequently
See other definitions of SAC
Samples in periodicals archive:
Student Activity Center: Event Calendar | Scene | Food.
Student Activity Center (Room 4301)333 East Campus MallMadison, WI 53715-1380Phone (608) 265-4276Fax (608) 265-5637Email info@asm. wisc.
The Student Activity Center is considered one of the finest college recreational facilities in the Midwest. The SAC was built in 1990 as an addition to Rose Center. It covers 175,000 square feet and is fully accessible to people with disabilities. The facility houses a swimming pool, racquetball, basketball and volleyball courts, a bowling alley and fitness centers with strength training equipment and free weights.
The William Pitt Union was originally constructed in 1898 as a hotel and was converted into a student center in 1956.  Some student activity centers on the NRHP include O'Hara Student Center (University of Pittsburgh), McKenny Hall (Eastern Michigan University), and the Tivoli Student Union.  The Tivoli Student Union was originally home to the Trevoli Brewing Company but since has been converted to serve several institutions in Denver, Colorado.