peacenik vs disarmer

peacenik and disarmer both are nouns.

Word	Noun	Adjective	Verb	Adverb
peacenik	Yes	No	No	No
disarmer	Yes	No	No	No

As nouns, disarmer is a hypernym of peacenik; that is, disarmer is a word with a broader meaning than peacenik:

peacenik: someone who prefers negotiations to armed conflict in the conduct of foreign relations
disarmer: someone opposed to violence as a means of settling disputes

Other hypernyms of peacenik include pacificist, pacifist.

peacenik (noun)	disarmer (noun)
someone who prefers negotiations to armed conflict in the conduct of foreign relations	someone opposed to violence as a means of settling disputes