This is the 11269th most frequent Russian word.
девочки
"Девочки" means "girls" in English.
The word 'девочки' is in the nominative plural form and is used as a direct address to a group of young females, often friends or acquaintances.
Привет, девочки, как у вас дела?
Hello, girls, how are you doing?
The word 'девочек' is in the genitive plural form and is used to specify the subjects having the books, denoting possession.
У этих девочек есть интересные книги.
These girls have interesting books.
The word 'девочек' is in the accusative plural form and is used as the direct object of the verb 'вижу' (see), indicating whom the action is directed towards.