This is the 9823rd most frequent Polish word.
złota
"Złota" means "golden" or refers to the Polish currency "zloty" in its feminine singular form.
In this case, 'złota' is a form of the currency's name 'złoty' used in a specific grammatical case.
Polska waluta to złota.
Polish currency is the złoty.
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.