echelon
🇺🇸
/ˈeʃəlɑːn/
🇬🇧
/ˈeʃəlɒn/
A level of importance or rank within a group or organization.
She worked her way up through the echelons of the company.
A formation of soldiers, vehicles, or aircraft arranged in a diagonal line, with each unit behind and to the side of the one in front.
The soldiers formed an echelon as they advanced towards the enemy.