This is the 817th most frequent Italian word.
vicina
"Vicina" means "neighbor" (feminine) or "near/close" (feminine form).
Here, 'vicina' is used as an adjective agreeing with 'stazione,' describing proximity.
La stazione è vicina alla mia casa.
The station is near my house.
In this sentence, 'vicina' functions as a noun to mean '(female) neighbor.'
La mia vicina mi ha invitato a cena.
My neighbor invited me for dinner.
Here, 'vicina' is used metaphorically as an adjective, implying closeness in a semantic sense.