Exact Match:
- echelon
- a diffraction grating consisting of a pile of plates of equal thickness arranged stepwise with a constant offset
- a body of troops arranged in a line
Synonyms:
- battle array,
- caste,
- class,
- close formation,
- condition,
- deployment,
- disposition,
- file,
- footing,
- formation,
- formation flying,
- hierarchy,
- open order,
- order,
- order of battle,
- place,
- position,
- power structure,
- precedence,
- queue,
- rank,
- rate,
- rating,
- row,
- sphere,
- stage,
- standing,
- station,
- status,
- string,
- tier