The term "pulse jet" refers to an engine that operates by using intermittent combustion in order to create thrust. Synonyms for this type of engine include "pulsed combustion engine," "pressure jet engine," and "bistable engine." Other related terms that may be used interchangeably include "rocket engine," "ramjet engine," and "scramjet engine." Although each of these engines differs in design and function, they all share the basic concept of using combustion to generate propulsion. Pulse jet engines are commonly used in model airplanes, as well as in industrial applications such as flame cutting and incineration. When discussing pulse jet engines, it is important to note the specific type of engine being referred to in order to avoid confusion with other related technologies.