act shoulder to shoulder
To act together, side by side, in cooperation of a shared goal or purpose. If we all act shoulder to shoulder, there's a chance we'll be able to get this legislation repealed.
be shoulder to shoulder
To be together, side by side, in cooperation of a shared goal or purpose. Bystanders, police officers, and firefighters have been shoulder to shoulder clearing rubble from the town after the earthquake.
stand shoulder to shoulder
To remain united in support, especially during a period of difficulty. The members of this committee have had their differences, but you can be sure that we stand shoulder to shoulder when it comes to this issue. We will not let hate tear this town apart. It's encouraging to see students and faculty standing shoulder to shoulder after the tragedy.