This is the 17294th most frequent Polish word.
zameldowała
"Zameldowała" means "she reported" or "she registered."
In this sentence, 'zameldowała się' refers to the action of registering oneself upon arrival at a hotel.
Anna zameldowała się w hotelu na dwa dni.
Anna checked into the hotel for two days.
Here, 'zameldowała' denotes the action of informing or reporting something to an authority.
Maria zameldowała policji o kradzieży samochodu.
Maria reported the car theft to the police.
In this case, 'zameldowała się' metaphorically implies the athlete's arrival and presence at the finish line.