This is the 1377th most frequent Catalan word.
entrat
"Entrat" means "entered" in English.
Here, "entrat" is the past participle of the verb "entrar," used in perfect tense to indicate the action of entering a place.
Ell ha entrat a la sala.
He has entered the room.
In this context, "entrat" is used as a past participle in a passive construction, describing the state of the book being entered into the system.
El llibre està entrat en el sistema.
The book is entered into the system.
Here, "entrat" is used as an adjective, derived from the past participle, meaning established or widely recognized.