| 1. | a rocket firework that ascends into the air and explodes at a height, usually in a brilliant array of sparks of one or more colors. |
| 2. | Also called scarlet gilia. a plant, Ipomopsis aggregata, of the phlox family, native to western North America, having finely divided leaves and clusters of red, trumpet-shaped flowers. |
| 3. | an organized group cheer, usually led by a cheerleader, as at a football or basketball game, which begins with a hissing or whistling and ends with a shout. |
| 4. | to rise or increase rapidly or suddenly, esp. to unexpected or unprecedented levels: Prices skyrocketed during the war. |
| 5. | to cause to rise or increase rapidly and usually suddenly: Economic changes have skyrocketed prices. |
| 6. | to thrust with sudden dramatic advancement; catapult: Talent has skyrocketed him to fame. |