This is the 841st most frequent Hebrew word.
נרשמו
"Were registered" or "signed up."
Here, "נרשמו" is used to indicate the action of registering oneself to a course, meaning the students completed the registration process to enroll in the literature course.
התלמידים נרשמו לקורס החדש בספרות.
The students registered for the new literature course.
In this sentence, "נרשמו" signifies the logging or recording of data: new entries were documented in the history book.
רשומות חדשות נרשמו בספר ההיסטוריה.
New records were logged in the history book.
"נרשמו" here shows the action of signing oneself up or enlisting for participation, exemplified by athletes enlisting for the Olympic Games.