This is the 334th most frequent Italian word.
venerdì
"Venerdì" means "Friday" in English.
In this sentence, 'venerdì' is used as a noun indicating the name of the day.
Domani è venerdì, quindi faremo una pausa più lunga.
Tomorrow is Friday, so we will take a longer break.
Here, 'venerdì' again acts as a noun, referring to the specific day of the week the restaurant is open.
Il ristorante è aperto solo il venerdì e il sabato.
The restaurant is open only on Fridays and Saturdays.
Here, 'venerdì' functions as an adverb denoting a specific day of the week when an action will occur.