echelon /eshˈə-lon or (French) āsh-lɔ̃ˈ/

1. A particular level in the hierarchy of an organization
2. The group of people at any one of these levels
3. An arrangement of troops, ships, planes, etc as if in steps

To arrange in an echelon

To form an echelon

• psyop
• psywar
• pt
• PT
• Pt
• pta
• PTA
• ptarmic
• ptarmics
• ptarmigan
• ptarmigans
• PTE
• Pte
• pter-
• -ptera
• -pteran
• pteranodon
• pteranodons
• pteria
• Pterichthys
• Pteridium
• pteridologies
• pteridologist
• pteridologists
• pteridology