Definitions of rocket:

• noun:   a jet engine containing its own propellant and driven by reaction propulsion
• noun:   any vehicle propelled by a rocket engine
• noun:   propels bright light high in the sky, or used to propel a lifesaving line or harpoon
• noun:   erect European annual often grown as a salad crop to be harvested when young and tender
• noun:   sends a firework display high into the sky
• verb:   propel with a rocket
• verb:   shoot up abruptly, like a rocket

  Example: "Prices skyrocketed"