What is another word for absolute ceiling?
Pronunciation: [ˈabsəlˌuːt sˈiːlɪŋ] (IPA) 
The term "absolute ceiling" refers to the maximum altitude that an aircraft can reach in the atmosphere, beyond which it cannot climb without losing speed and altitude. Some synonyms for "absolute ceiling" include "service ceiling," "maximum operational altitude," and "ceiling altitude." These terms are often used interchangeably depending on the context. "Service ceiling" is typically used in aviation to refer to the highest altitude at which an aircraft can maintain a specified rate of climb. "Maximum operational altitude" refers to the highest altitude at which an aircraft can safely operate while still maintaining adequate performance. "Ceiling altitude" is a general term that can refer to both service and absolute ceilings.
