subfigure vs hemisphere

subfigure and hemisphere both are nouns.

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

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

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

subfigure (noun)	hemisphere (noun)
a figure that is a part of another figure	either half of the cerebrum
	half of the terrestrial globe
	half of a sphere