subfigure vs flank

subfigure and flank both are nouns.

Word	Noun	Adjective	Verb	Adverb
subfigure	Yes	No	No	No
flank	Yes	No	Yes	No

As nouns, flank is a hyponym of subfigure; that is, flank is a word with a more specific, narrower meaning than subfigure:

Other hyponyms of subfigure include hemisphere, facet, branch, leg, ramification.

subfigure (noun)	flank (noun)
a figure that is a part of another figure	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

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