This is the 7083rd most frequent Russian word.
бесплатный
Free (of charge).
The word 'бесплатные' (free) describes an adjective modifying 'курсы' (courses), emphasizing that there is no cost associated with these courses.
Это приложение предлагает бесплатные курсы.
This app offers free courses.
The word 'бесплатный' (free) is used as an adjective describing 'вход' (entrance), indicating that there is no charge for students to enter.
На этой выставке вход бесплатный для студентов.
The entrance to this exhibition is free for students.
The word 'бесплатный' (free) modifies 'интернет' (internet), signifying that the internet access provided at the place does not require payment.