Today’s Parola del Giorno is the noun il salvavita, which means lifesaver. Take note that this noun is masculine and invariable (it has the same form in the singular and plural).
The word can also refer to a circuit-breaker, which trips when there is an electrical overload or short-circuit. The word can also be used idiomatically, as in our example below:
Marco, grazie per quel dizionario che mi hai prestato! È stato un salvavita e mi ha aiutato a superare l’esame.
Marco, thanks for that dictionary you loaned me! It was a lifesaver and helped me pass my exam.