laden vs overcharge

laden is not a noun while overcharge is a noun.

Word	Noun	Adjective	Verb	Adverb
laden	No	Yes	Yes	No
overcharge	Yes	No	Yes	No

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

Other hyponyms of laden include load down, pack, bomb up, overload, surcharge, reload, stack.

laden (noun)	overcharge (noun)
	a price that is too high

laden (adjective)	overcharge (adjective)
burdened psychologically or mentally
filled with a great quantity

laden (verb)	overcharge (verb)
remove with or as if with a ladle	place too much a load on
fill or place a load on	rip off; ask an unreasonable price