charcoal pile vs agglomerate

charcoal pile and agglomerate both are nouns.

Word	Noun	Adjective	Verb	Adverb
charcoal pile	Yes	No	No	No
agglomerate	Yes	Yes	Yes	No

As nouns, agglomerate is a hypernym of charcoal pile; that is, agglomerate is a word with a broader meaning than charcoal pile:

charcoal pile: a pile of wooden billets, covered with turf or moistened clay, used to produce wood charcoal.
agglomerate: a collection of objects laid on top of each other

Other hypernyms of charcoal pile include cumulation, cumulus, heap, mound, pile.

charcoal pile (noun)	agglomerate (noun)
a pile of wooden billets, covered with turf or moistened clay, used to produce wood charcoal.	a collection of objects laid on top of each other
	volcanic rock consisting of large fragments fused together

charcoal pile (adjective)	agglomerate (adjective)
	clustered together but not coherent

charcoal pile (verb)	agglomerate (verb)
	form into one cluster