The sixth day of the week in many religious traditions, and the fifth day of the week in systems using the ISO 8601 norm; the Muslim Sabbath; it follows Thursday and precedes Saturday.
"After a long workweek that began on Monday, we finally reached Friday to enjoy our time off before the weekend starts."
In plain English: Friday is the day of the week that comes right before Saturday and usually means school or work ends soon.
"We always have pizza for dinner on Friday because everyone is tired from work all week long."
On Friday.
"On Friday, we usually have pizza night at our house."
Friday comes from Old English, where it was a compound word combining the name of the goddess Frigg with "day." This naming convention was an adaptation of the Roman practice of honoring Venus on that day, linking the Germanic deity to the Roman goddess of love.