oppose vs counterweight

oppose is not a noun while counterweight is a noun.

Word	Noun	Adjective	Verb	Adverb
oppose	No	No	Yes	No
counterweight	Yes	No	Yes	No

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

Other hyponyms of oppose include counterpoise, counterpose.

oppose (noun)	counterweight (noun)
	a weight that balances another weight

oppose (verb)	counterweight (verb)
be resistant to	constitute a counterweight or counterbalance to
be against; express opposition to
set into opposition or rivalry
fight against or resist strongly
act against or in opposition to
contrast with equal weight or force