How do you say gym in English?

Hello!

gymnasium

English [dm]

Beauty [dm]

Noun (short for noun)

Gymnasium;

Gymnastics;

Gym;

Indoor aerobics;

[example ]While

this

Low altitude detection system

be

Playing golf,

I

work

be away from home

exist

this

Gym.

While the boys are playing golf, I exercise in the gym.