B1
the part in the middle of your arm where it bends
Dictionary examples:
I use my elbow to open doors when my hands are full. (0.0)
My cat loves to sit on my elbow when I'm trying to work. (0.0)
My dog thinks my elbow is the perfect pillow for his head. (0.0)
Her arm was bandaged from the elbow to the fingers. (37.5)