saphead vs sap

saphead and sap both are nouns.

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

As nouns, saphead and sap are synonyms defined as:

Other synonyms of saphead include fool, muggins, tomfool.

saphead (noun)	sap (noun)
a person who lacks good judgment	a piece of metal covered by leather with a flexible handle; used for hitting people
	a person who lacks good judgment
	a watery solution of sugars, salts, and minerals that circulates through the vascular system of a plant

saphead (verb)	sap (verb)
	excavate the earth beneath
	deplete