Meaning of SHOULDER in English
1》 the joint between the upper arm or forelimb and the main part of the body.
↘the part of a bird or insect at which the wing is attached.
2》 a part of something resembling a ~, in particular a point at which a steep slope descends from a plateau or highland area.
3》 short for hard ~ .
1》 put (something heavy) over one's ~ or ~s to carry.
2》 take on (a burden or responsibility).
3》 push out of one's way with one's ~.
put one's ~ to the wheel set to work vigorously.
~ arms hold a rifle against the right side of the body, barrel upwards.
~ to ~ side by side or acting together.
OE sculdor , of W. Gmc origin.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004