gymnasium
n. countablen. a large room or building with equipment for physical exercise and sports. You often go here to lift weights, run, or play indoor games like basketball.
n. a large room or hall equipped for physical exercise, gymnastics, and indoor sports. Often shortened to 'gym' in modern usage; the full form is now considered formal.
The school built a new gymnasium for the basketball team.
Students are required to wear clean athletic shoes before entering the gymnasium to protect the polished wooden floor.
While the local gymnasium offers a variety of weightlifting equipment, many residents prefer the outdoor tracks for their morning cardio routines during the summer months.
Often functions as the head of a noun phrase; the clipped form 'gym' is significantly more common in daily speech.