This is the 9823rd most frequent Polish word.
złota
"Złota" means "golden" or refers to the Polish currency "zloty" in its feminine singular form.
Here, 'złota' is an adjective referring to the coin being gold in nature.
Złota moneta błyszczy w słońcu.
The golden coin shines in the sun.
In this sentence, 'złota' is a noun referring to the substance gold.
W pokoju znalazłem złota.
In the room, I found some gold.
In this case, 'złota' is a form of the currency's name 'złoty' used in a specific grammatical case.