Rocket
Rocket is any of various simple or complex tubelike devices containing combustibles that, on being ignited, liberate gases whose action propels the tube through the air: used for pyrotechnic effects, signaling, carrying a lifeline, hurling explosives at an enemy, putting a space vehicle into orbit, etc. [dictionary.com].
Also, it is a vehicle shaped like a tube that travels in space. A rocket is launched when it is sent up from the ground into the sky. It flies through the air and explodes when it hits something [Macmillan dictionary].
Rockets carry fuel that is burned inside a chamber. The fuel burns when it is mixed with oxygen gas, ignited, or set on fire. As the fuel burns, it releases hot gas from an opening at the back of the chamber. The force of the gas moving backward pushes the rocket forward. This action is called jet propulsion.
The Chinese probably invented rockets in the 1200s. They made rockets by filling bamboo cases with gunpowder. The Chinese used rockets during religious ceremonies and as weapons. In the 1700s, rockets were improved by making them with metal.
Rockets were used as weapons in many wars of the 1800s and 1900s, especially World War II (1939–45).
In the late 1800s, a Russian scientist named Konstantin E. Tsiolkovsky got the idea that rockets could be used to travel into space. He did not build any rockets, but his ideas were helpful. Robert H. Goddard, a U.S. engineer, built the first liquid-fuel rocket in 1925. In October 1957, the Soviet Union used a rocket to launch the first spacecraft, Sputnik 1, into orbit around Earth. Since then, rockets have been used to launch thousands of other spacecraft [Britannica kids].
Rocket. Dictionary.com. Retrieved from: https://www.dictionary.com/browse/rocket
Rocket: definitions and synonyms. Macmillan dictionary. Retrieved from: https://www.macmillandictionary.com/dictionary/british/rocket_1