This is the 550th most frequent Slovenian word.
velikih
"Velikih" means "of big" or "of large" in English, used in the plural genitive form.
In this sentence, 'velikih' is used as an adjective modifying the plural masculine noun 'prijateljev', meaning 'friends,' in the genitive case to specify a quantity of large friends.
Imam pet velikih prijateljev.
I have five big friends.
Here, 'velikih' is an adjective qualifying the plural masculine noun 'pesnikov', meaning 'poets,' in the genitive case to describe their greatness.
Pesem velikih pesnikov je čudovita.
The song of great poets is wonderful.
The adjective 'velikih' describes the plural neuter noun 'dreves', meaning 'trees,' in the genitive case indicating the source of the shade.