OH MY GOD I'M DOING SETS IN MATHS RIGHT NOW.
My teacher always calls an empty set "phi" and we use "Φ" instead of Ø.
Have a lingot.
At this point, I can know drink beer and eat sandwiches in Norway, which is nice
I keep thinking of the German word Öl and messing up
Øl sounds like a good thing to order when in Germany, especially on a date xD
Fun fact if it helps you remember: øl is related to the English word "ale". Øl is also neuter (et øl) when referring to a kind of beer and masculine (en øl) when referring to a glass or can &c of beer. In Nynorsk, it is always neuter.