This is the 8200th most frequent Swedish word.
anmälda
"Anmälda" means "registered" or "reported" in English.
In this sentence, 'anmälda' is used as an adjective describing the students who have registered for an event or course.
Anmälda elever får en personlig bekräftelse.
Registered students receive a personal confirmation.
Here, 'anmälda' functions as a noun referring collectively to the individuals who have registered.
De anmälda är färre än förra året.
The registered are fewer than last year.
This usage of 'anmälda' also acts as a noun, indicating the group of people who have completed the registration process.