base
Only 1 part has 4 letters, noch, the notched part for the string.
You grip something tightly.
heelsolelacetoesSoleHeelVampSoleHeelVamp
The answer is brim.
i think it is your palm
A role maybe?
"Nose"
heel i think
Base
A door is an opening.
mend
Beer has only four letters. Milk, java, soda and wine have only four letters.