seeder vs worker

seeder and worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
seeder	Yes	No	No	No
worker	Yes	No	No	No

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

Other hypernyms of seeder include actor, doer.

seeder (noun)	worker (noun)
a kitchen utensil that removes seeds from fruit	sterile member of a colony of social insects that forages for food and cares for the larvae
a mechanical device that sows grass seed or grain evenly over the ground	a person who works at a specific occupation
a person who seeds clouds	a member of the working class (not necessarily employed)
	a person who acts and gets things done