flank

flank verb uk/flæŋk/ us  be flank ed by sb/sth
to have someone or something at the side or at each side

примыкать, быть расположенным по бокам
The President was flank ed by police officers.

FLANK noun

[ C ] uk/flæŋk/ us flank noun [C]
(ARMY)

the side of an army when it is ready to fight

фланг