A suite in a hotel or other public accommodation (e.g. a cruise ship) denotes, according to most dictionary definitions, connected rooms under one room number. Hotels may refer to suites as a class of accommodations with more space than a standard hotel room, but typically speaking there should be more than one room to constitute a suite.
In luxury or upscale accommodations, such as Ritz Carlton, InterContinental, Marriott, Westin, Four Seasons, Shangri-La or St. Regis, suites may comprise multiple rooms. Many independent properties have one or more honeymoon suites. The most luxurious accommodation in a hotel is often called the presidential suite or royal suite.