cloud seeder vs doer

cloud seeder and doer both are nouns.

Word	Noun	Adjective	Verb	Adverb
cloud seeder	Yes	No	No	No
doer	Yes	No	No	No

As nouns, doer is a hypernym of cloud seeder; that is, doer is a word with a broader meaning than cloud seeder:

Other hypernyms of cloud seeder include actor, worker.

cloud seeder (noun)	doer (noun)
a person who seeds clouds	a person who acts and gets things done