The most common use of a firework is as part of a fireworks display (also called a fireworks show or pyrotechnics), a display of the effects produced by firework devices. Fireworks competitions are also regularly held at a number of places.
A gourd is a plant of the family Cucurbitaceae, particularly Cucurbita and Lagenaria or the fruit of the two genera of Bignoniaceae calabash tree, Crescentia and Amphitecna. The term refers to a number of species and subspecies, many with hard shells, and some without.
The main plants referred to as gourds include several species from the Cucurbita genus (mostly native to North America, including the Malabar gourd and turban squash), Crescentia cujete (the tree gourd or calabash tree, native to the American tropics) and Lagenaria siceraria (bottle gourd).