military machine vs flank

military machine and flank both are nouns.

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

military machine (noun)	flank (noun)
the military forces of a nation	the side between ribs and hipbone
	a cut from the fleshy part of an animal's side between the ribs and the leg
	the side of military or naval formation
	a subfigure consisting of a side of something

military machine (verb)	flank (verb)
	be located at the sides of something or somebody