joint vs butt

joint and butt both are nouns.

Word	Noun	Adjective	Verb	Adverb
joint	Yes	Yes	Yes	No
butt	Yes	No	Yes	No

As nouns, butt is a hypernym of joint; that is, butt is a word with a broader meaning than joint:

Other hypernyms of joint include cigaret, cigarette, coffin nail, fag.

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

joint (noun)	butt (noun)
marijuana leaves rolled into a cigarette for smoking	thick end of the handle
junction by which parts or objects are joined together	the small unused part of something (especially the end of a cigarette that is left after smoking)
a disreputable place of entertainment	a large cask (especially one holding a volume equivalent to 2 hogsheads or 126 gallons)
(anatomy) the point of connection between two bones or elements of a skeleton (especially if it allows motion)	sports equipment consisting of an object set up for a marksman or archer to aim at
a piece of meat roasted or for roasting and of a size for slicing into more than one portion	finely ground tobacco wrapped in paper; for smoking
the shape or manner in which things come together and a connection is made	a joint made by fastening ends together without overlapping
	the fleshy part of the human body that you sit on
	a victim of ridicule or pranks
	the part of a plant from which the roots spring or the part of a stalk or trunk nearest the roots

joint (adjective)	butt (adjective)
united or combined
involving both houses of a legislature
affecting or involving two or more

joint (verb)	butt (verb)
fasten with a joint	to strike, thrust or shove against
separate (meat) at the joint	place end to end without overlapping
provide with a joint	lie adjacent to another or share a boundary
fit as if by joints