This is the 4922nd most frequent Catalan word.
truca
"Truca" means "call" (as in making a phone call) or "knocks" (depending on context).
In this sentence, 'truca' is used as a verb meaning 'knock'.
Truca a la porta abans d'entrar.
Knock on the door before entering.
Here, 'truca' functions as a verb meaning 'call' (on the phone).
Truca al teu amic per saber com està.
Call your friend to check how they are.
In this instance, 'truca' is utilized as a verb to 'call', typically to request assistance.