This is the 354th most frequent Croatian word.
koriste
"Koriste" means "they use" or "they are using" in English.
Here, 'koriste' is the verb 'koristiti' in the third person plural, meaning 'they use'.
Ljudi koriste tehnologiju za komunikaciju.
People use technology for communication.
In this sentence, 'koriste' is used in a reflexive form, indicating 'are used for'.
Ove škare se koriste za rezanje papira.
These scissors are used for cutting paper.
This question uses 'koriste' to inquire about the usage of the library by students, again in the third person plural.