"To operate the theater" means to manage and oversee all the activities and functions of a theater, such as organizing performances, maintaining the facilities, hiring staff, and ensuring everything runs smoothly. Full definition
For years, the building housed a close - knit group of actors and artists who operated a theater on the ground floor. (freecanvasdc.com)
One amazing case I know of was a case where the fetus was in distress, so they ordered an emergency operating theater. (amotherinisrael.com)
The scientists believe their technology represents the future of 3D digital interaction, for use in hospital operating theaters or other environments. (scientificamerican.com)