This is the 13153rd most frequent German word.
anmelden
"Anmelden" means "to register" or "to log in."
Here, 'anmelden' is used reflexively to indicate that the speaker intends to register themselves for an event or a service.
Ich möchte mich für den Kurs anmelden.
I would like to sign up for the course.
In this sentence, 'anmelden' is used transitively to indicate the action of registering an item (the car) with an authority or organization.
Er hat gestern das Auto beim Amt angemeldet.
He registered the car at the office yesterday.
Here, 'anmelden' expresses the requirement to notify or register attendance prior to a specific action or event.