Definitions
1.NounA high-explosive bomb used for the purposes of demolishing extensive areas, such as a city block.
2.NounSomething, such as a film or book, that sustains exceptional and widespread popularity and achieves enormous sales, as opposed to a box office bomb."He was watching the blockbuster film series Harry Potter."
3.NounSomething, especially an event or a film, book or other creative work, that is intended to achieve high sales (perhaps indicated by large budgets or high advertising spending) or that is conceived on a large or epic scale
4.NounAnything very large or powerful; a whopper.
5.NounA large firework of the firecracker type; an M-80.
6.NounOne who engages in blockbusting (technique encouraging people to sell property).