"A weekend with my girlfriend."
Translation:Un fin de semana con mi novia.
Maybe I'm still asleep, but why is it un and not una? I thought it was suppose to be feminine. Am I in a fog?
"Amiga" means a friend who is a girl or a woman. Not too long ago, woman and girls would refer to their female friends as "my girlfriend(s)" and I have in the past even heard little boys call their male friends "my boy friend" just meaning "amigo", a friend who is male. But, in recent years "boyfriend" and "girlfriend" have come more and more to just mean someone you're dating.
A long time ago novio/novia only meant someone you were engaged to; a fiancé/fiancée. In modern times it also means a boyfriend/girlfriend or sweetheart. So, it is something more than just a friend or amigo/amiga.
"fin de semana mi novia" is wrong (it fails to translate "a" and "with" and just says "weekend my girlfriend")
I would say that you should throw out that dictionary and stick with Duolingo. 😀 👍
If you reported that to Duolingo, you are just wasting their time and slowing down getting any genuine problems fixed.
In the future, if your answer is marked as incorrect please share your full submission here in the user forum so it can be completely checked.