echelon
noun
ech·e·lon
| \ ˈe-shə-ˌlän
\
\
Definition of echelon
(Entry 1 of 2)
1a(1)
: an arrangement of a body of troops with its units each somewhat to the left or right of the one in the rear like a series of steps
(2)
: a formation of units or individuals resembling such an echelon
geese flying in echelon
(3)
: a flight formation in which each airplane flies at a certain elevation above or below and at a certain distance behind and to the right or left of the airplane ahead
b
: any of several military units in echelon formation
also
: any unit or group acting in a disciplined or organized manner
served in a combat echelon
2a
: one of a series of levels or grades in an organization or field of activity
involved employees at every echelon
b
: a group of individuals at a particular level or grade in an organization or field of activity
the upper echelons of management