echelon vs military machine

echelon and military machine both are nouns.

Word	Noun	Adjective	Verb	Adverb
echelon	Yes	No	No	No
military machine	Yes	No	No	No

echelon (noun)	military machine (noun)
a diffraction grating consisting of a pile of plates of equal thickness arranged stepwise with a constant offset	the military forces of a nation
a body of troops arranged in a line
status in a society or organization