sap vs ass

sap and ass both are nouns.

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

As nouns, ass is a hyponym of sap; that is, ass is a word with a more specific, narrower meaning than sap:

sap (noun)	ass (noun)
a piece of metal covered by leather with a flexible handle; used for hitting people	slang for sexual intercourse
a person who lacks good judgment	hardy and sure-footed animal smaller and with longer ears than the horse
a watery solution of sugars, salts, and minerals that circulates through the vascular system of a plant	the fleshy part of the human body that you sit on
	a pompous fool

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