adverb
1. : in close proximity : side by side
soldiers fighting shoulder to shoulder
old brick houses standing shoulder to shoulder against the sidewalk
2. : in close cooperation
work shoulder to shoulder in the common cause
adverb
1. : in close proximity : side by side
soldiers fighting shoulder to shoulder
old brick houses standing shoulder to shoulder against the sidewalk
2. : in close cooperation
work shoulder to shoulder in the common cause
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012