buffoon vs saphead

buffoon and saphead both are nouns.

Word	Noun	Adjective	Verb	Adverb
buffoon	Yes	No	No	No
saphead	Yes	No	No	No

As nouns, saphead is a hypernym of buffoon; that is, saphead is a word with a broader meaning than buffoon:

Other hypernyms of buffoon include fool, muggins, sap, tomfool.

buffoon (noun)	saphead (noun)
a person who amuses others by ridiculous behavior	a person who lacks good judgment
a rude or vulgar fool