From WordNet (r) 3.0 (2006):
rocket
n 1: any vehicle self-propelled by a rocket engine [syn:
rocket, projectile]
2: a jet engine containing its own propellant and driven by
reaction propulsion [syn: rocket, rocket engine]
3: erect European annual often grown as a salad crop to be
harvested when young and tender [syn: rocket, roquette,
garden rocket, rocket salad, arugula, Eruca sativa,
Eruca vesicaria sativa]
4: propels bright light high in the sky, or used to propel a
lifesaving line or harpoon [syn: rocket, skyrocket]
5: sends a firework display high into the sky [syn: skyrocket,
rocket]
v 1: shoot up abruptly, like a rocket; "prices skyrocketed"
[syn: rocket, skyrocket]
2: propel with a rocket