There are many synonyms for the phrase "operating room." Some common alternatives include "surgery room," "operation theatre," and "operating theater." Other options include "surgical suite," "procedure room," and "surgical center." In addition, some medical facilities may refer to their operating rooms as "interventional radiology suites" or "endoscopy suites," depending on the type of procedures performed within them. Regardless of the specific terminology used, all of these phrases refer to a specialized medical facility designed specifically for surgical procedures, equipped with sterile materials and staffed by trained medical professionals.