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.
Gourmand is from the Middle English word gourmaunt,' which meant glutton, and gourmaunt itself was derived from the Old French word gourmand/gourmant. That word came from the Old French gromet/gourmet, which was a wine merchant's servant.