This is the 9158th most frequent Polish word.
szpiro
"Szpiro" in Polish does not have a widely recognized definition and may be a proper name or a rarely used term.
Here the word 'szpiro' is used as a noun referring to a bolt, commonly used in constructions and engineering.
Szpiro, którego użyto w tej konstrukcji, jest wykonane ze stali.
The bolt used in this construction is made of steel.
This sentence uses 'szpiro' to refer to a structural fixture where an item is attached or dangling.
Na szpirze wisi delikatne ogniwo z perłą.
On the bolt hangs a delicate link with a pearl.
Here 'szpiro' is pluralized to indicate multiple units are needed for completing the task.