This is the 9473rd most frequent Swedish word.
fyrverkerishow
A fireworks show.
Here, 'fyrverkerishow' is used as a noun meaning a show consisting of fireworks.
Vi gick till parken för att titta på en imponerande fyrverkerishow.
We went to the park to watch an impressive fireworks show.
Here, 'fyrverkerishowens' is the genitive form of 'fyrverkerishow', indicating possession—'the fireworks show's'.
Fyrverkerishowens färger var så klara och fascinerande.
The colors of the fireworks show were so bright and fascinating.
This sentence uses 'fyrverkerishow' in the context of a traditional event.