yachtsperson vs sailor

yachtsperson and sailor both are nouns.

Word	Noun	Adjective	Verb	Adverb
yachtsperson	Yes	No	No	No
sailor	Yes	No	No	No

As nouns, sailor is a hypernym of yachtsperson; that is, sailor is a word with a broader meaning than yachtsperson:

Other hypernyms of yachtsperson include crewman.

yachtsperson (noun)	sailor (noun)
a person who owns or sails a yacht	a stiff hat made of straw with a flat crown
	any member of a ship's crew
	a serviceman in the navy