This is the 2296th most frequent Polish word.
tysiąca
The Polish word "tysiąca" means "of a thousand" in English.
In this context, 'tysiąca' is the genitive singular form of the number "thousand," used here to describe the amount of money.
Mam oszczędności w wysokości tysiąca złotych.
I have savings amounting to one thousand zlotys.
Here, 'tysiąca' is again the genitive singular form, used to indicate the quantity of signatures missing.
Brakuje mi tysiąca podpisów, aby zakończyć petycję.
I am missing a thousand signatures to complete the petition.
'Tysiąca' in this sentence is in the genitive singular form, used to contextualize the age of a story.