flank vs subfigure

flank and subfigure both are nouns.

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

As nouns, subfigure is a hypernym of flank; that is, subfigure is a word with a broader meaning than flank:

flank (noun)	subfigure (noun)
the side between ribs and hipbone	a figure that is a part of another figure
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

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