chieftain vs leader

chieftain and leader both are nouns.

Word	Noun	Adjective	Verb	Adverb
chieftain	Yes	No	No	No
leader	Yes	No	No	No

As nouns, leader is a hypernym of chieftain; that is, leader is a word with a broader meaning than chieftain:

As nouns, leader is a hypernym of chieftain; that is, leader is a word with a broader meaning than chieftain:

chieftain (noun)	leader (noun)
the head of a tribe or clan	a featured article of merchandise sold at a loss in order to draw customers
the leader of a group of people	a person who rules or guides or inspires others