"Enjoy the weekend!"
Translation:¡Disfruta el fin de semana!
I would have thought it wouldve been la because fin seems like an adjective, but i was wrong ;) How many days are in a week, 7, therefore end or fin is an adjective to the subject word semana. Unless weekend is its own separate thing. No matter, thanks for the awesome app.
Nouns don't always keep the same gender in Spanish that they have in English/French. I don't think there is a real, fact-based reason for this.
One of my favorite example is "las manos". Although it ends with "-os", it is still a feminine noun. Curious, right?