Nape
The back of the neck where the hairline ends, the lowest point of most haircuts.
Also: nape of the neck
The nape is the back of the neck below the occipital bone, where the hairline stops. Its shape matters in short cuts: a barber may finish it square, rounded or tapered so it fades into the skin. Many updos and chignons sit just above the nape, and the low ponytail is tied there. Hair at the nape is often finer and can grow in its own direction, so some nape hairlines curl up or grow towards the centre.