I have a weak spot with articles, i, a native speaker, have to think for long about "teller" is it "der Teller" or "das Teller". One is my local dialect the other standard German. I know which one to use by imagining how my old neighbor would talk.

Another gem is that in my local dialect the word for foot (Fuß) has an extended meaning and denotes the body part of foot and leg. There basically is not a separate word for leg (well there is but it's standard German not dialect). The standard German word for leg is "bein". Now Bein has a common ancestor with a similar word in English "bone", and indeed the dialectal version of Bein in my dialect is the word for bone. (To me that indicates that the word has made a meaning change in standard German).

Now if I don't think hard (or if I am tired) I will call my leg "foot" in English, which confuses everyone.