What does rocket mean?
A rocket is a vehicle or projectile propelled by the powerful expulsion of gases from an engine. The term most commonly refers to a spacecraft that leaves Earth and carries satellites, scientific instruments, or other equipment into orbit, although it can also denote a military missile or a firework. As a verb, rocket describes movement or change that happens with exceptional speed: prices may rocket, a career may rocket upward, or a vehicle may rocket past its competitors. The word often carries a sense of dramatic acceleration and sudden success, especially in phrases such as "rocketing to fame." It is also used metaphorically for rapid, forceful growth. Historically, the word referred primarily to explosive projectiles before acquiring its modern association with spaceflight. Today, "rocket" can refer to the launch vehicle itself, while the complete launch system may include boosters, fuel, payload, and ground-support equipment.
A self-propelled vehicle or projectile propelled by the reaction of gases expelled from a rocket engine, especially a vehicle used to carry a payload into space.
"The rocket lifted off from its coastal launch pad."
The noun is also used for military missiles, fireworks, and other rocket-powered projectiles.
To move, rise, or increase with great speed, often suddenly.
"The small business rocketed to success after gaining national attention."
The verb is informal or contemporary and commonly describes rapid growth in prices, popularity, or achievement.
Used for multiple rockets or launch vehicles, as well as for a category of vehicles or projectiles.
"Several rockets are scheduled to launch satellites from the spaceport this year."
The word that sends missions into space also comes from an Italian word associated with a tower or fortress.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of rocket
English borrowed the word from Italian rocchetta, meaning "small rocket," a diminutive related to rocchetta's older sense of a type of explosive device and, historically, to Italian rocca, meaning "rock" or "tower." The English word was used for early gunpowder projectiles before the emergence of powered spaceflight. Modern forms such as rocketeer and rocketry were later developed from the established English noun.
Related word forms
How rocket is actually used
The verb is informal or contemporary in most uses and suggests sudden, dramatic speed or growth. As a noun, rocket can refer broadly to a space launch vehicle, a military missile, or a firework, with the context determining the intended sense.
Easily confused with rocket
A rocket is a propelled vehicle or projectile, whereas a rock is a naturally occurring piece of solid mineral material.