"skyrocket" in the noun sense
1. rocket, skyrocket
propels bright light high in the sky, or used to propel a lifesaving line or harpoon
2. skyrocket, rocket
sends a firework display high into the sky
"skyrocket" in the verb sense
1. rocket, skyrocket
shoot up abruptly, like a rocket
"prices skyrocketed"
Source: WordNet® (An amazing lexical database of English)
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