sachem vs pol

sachem and pol both are nouns.

Word	Noun	Adjective	Verb	Adverb
sachem	Yes	No	No	No
pol	Yes	No	No	No

As nouns, pol is a hypernym of sachem; that is, pol is a word with a broader meaning than sachem:

Other hypernyms of sachem include political leader, politician, politico.

sachem (noun)	pol (noun)
a chief of a North American tribe or confederation (especially an Algonquian chief)	a person active in party politics
a political leader (especially of Tammany Hall)