exploit vs overwork

exploit and overwork both are nouns.

Word	Noun	Adjective	Verb	Adverb
exploit	Yes	No	Yes	No
overwork	Yes	No	Yes	No

As verbs, exploit and overwork are synonyms defined as:

exploit (noun)	overwork (noun)
a notable achievement	the act of working too much or too long

exploit (verb)	overwork (verb)
use or manipulate to one's advantage	use too much
draw from; make good use of	work excessively hard
work excessively hard