There is no four-letter word for flank.
The word “flank” has five letters: F-L-A-N-K.
It means:
- The side of the body between the ribs and the hip bone.
- The side of an army or other military force.
- To attack from the side or rear.
It can also be used as a verb, meaning “to attack from the side or rear.”
For example:
- The cavalry flanked the enemy army.
- The dog flanked the sheep.
- The pain flanked my chest.
I hope this helps!