Lie on your right side.
Lie down on your left side.
He went over to the other side.
I felt a sudden pain in my side.
I have a slight pain in my side.
This medicine has no side effects.
If you are by my side, I don't need anything else.
I opened the door and saw two boys standing side by side.
It seems like you got up on the wrong side of the bed this morning.