This is the 2640th most frequent Russian word.
учатся
"Uчатся" means "they study" or "are learning."
Here, 'учатся' means 'study,' referring to the students engaging in educational activities.
Студенты учатся в университете.
The students study at the university.
In this example, 'учатся' means 'are learning,' when applied to acquiring a skill such as swimming.
Ваши дети учатся плавать этим летом.
Your children are learning to swim this summer.
Here, 'учатся' indicates the process of gaining knowledge or understanding from experiences, specifically mistakes.