comprise vs supplement

comprise is not a noun while supplement is a noun.

Word	Noun	Adjective	Verb	Adverb
comprise	No	No	Yes	No
supplement	Yes	No	Yes	No

As verbs, supplement is a hyponym of comprise; that is, supplement is a word with a more specific, narrower meaning than comprise:

Other hyponyms of comprise include make, compose, constitute, form, make, range, straddle, fall into, fall under, pose, present.

comprise (noun)	supplement (noun)
	a supplementary component that improves capability
	a quantity added (e.g. to make up for a deficiency)
	textual matter that is added onto a publication; usually at the end

comprise (verb)	supplement (verb)
include or contain; have as a component	add to the very end
be composed of	add as a supplement to what seems insufficient
form or compose	serve as a supplement to