Left side.
The butcher, cut off the left flank for a stew
The "flank" when referred to in these terms means the side or sides. Therefore you would be instructed to protect the left or right flank (side) or to protect the flank (both side)
The left flank is on the left side between the top of the hip bone and the lowest ribs. It is a place where very little protects the intestines but muscle and fat.
Flank
No
Some tactics used in the second battle of Bull Run were left flank and right flank.
flank
d
He has a reversed go-faster 7 on his left flank.
He wanted to hold off the Union from attacking their left flank.
On the wooden boxes, flank the doorway. At left is an acacia.
you have to flank his left side and kill his guard then throw a granade and then stab him with your sword