The phrase "comfort room" is often used to refer to a restroom or bathroom. However, there are several synonyms that can be used interchangeably with comfort room. One common synonym is "restroom," which is commonly used in public places such as hotels, restaurants, and shopping malls. Another synonym that can be used is "washroom," which is commonly used in Canada and parts of Europe. Other synonyms include "lavatory," "toilet," "bathroom," and "powder room." In informal settings, people may also use slang terms such as "loo," "john," or "water closet." Regardless of the synonym used, the purpose of a comfort room remains the same - to provide a clean and comfortable space for people to relieve themselves.