shoulder
肩 centers on the shoulder, the part of the body connecting the arm to the torso.
肩 combines 月 (flesh/body part) with 户, which may have originally depicted a shoulder blade or joint. The modern form visually suggests a body part under a covering, fitting the shoulder's location.
The outer 户 looks like a protective covering over the 月 (flesh) below, like the shoulder blade shielding the joint. Picture the shoulder as the body's natural armor.
For ケン, imagine Ken, a strong friend, carrying a heavy load on his shoulder: Ken -> ケン, and his shoulder bears the weight.
shoulder
right shoulder
title (e.g. Doctor, Professor, Lord); job title; position (in a company); degree; status; rank
stiff neck; stiff shoulders
left shoulder
shoulder width (breadth)
taking over (another's debt, work); shouldering someone else's burden; subrogation
shoulder (of a road); berm
shoulders; body
support; backing; patronage
giving someone a ride on one's shoulders
shoulder mark; shoulder board; epaulette; epaulet
under-shoulder swing-down; technique of grasping the arm of the opponent, the moment he comes forward, while stepping out of line and pushing down on the shoulder blade with the other hand, thus pulling him down
shawl
looking over someone's shoulder
top of the shoulders; tip of the shoulder; collar
shoulders and elbows
strong throwing arm
ranking equal with; comparing favourably with; comparing favorably with
sloping shoulders