This is the 7071st most frequent Spanish word.
estudiantil
"Related to students or school life."
Here, 'estudiantil' functions as an adjective describing 'organización' (organization) indicating that it is related to students.
La organización estudiantil planea un evento cultural.
The student organization is planning a cultural event.
In this phrase, 'estudiantil' modifies 'residencia' (residence) to indicate that it is designated for students.
El campus cuenta con una residencia estudiantil.
The campus has a student residence.
In this case, 'estudiantil' is used to characterize 'protesta' (protest), signifying that the protest involves students or is organized by them.