point man vs leader

point man and leader both are nouns.

Word	Noun	Adjective	Verb	Adverb
point man	Yes	No	No	No
leader	Yes	No	No	No

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

Other hypernyms of point man include adult male, man.

point man (noun)	leader (noun)
a soldier who goes ahead of a patrol	a featured article of merchandise sold at a loss in order to draw customers
someone who is the forefront of an important enterprise	a person who rules or guides or inspires others