expression, suru verb (irregular)
do together; share; participate in
Used for sharing an experience, action, or state with someone. Often appears as 〜を共にする.
彼らは喜びを共にした。
They shared their joy.
私たちは苦労を共
We have shared hardships together.
友人と旅を共にするのは楽しい。
It's fun to travel together with friends.